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#+TITLE: Ansible Playbooks for yaVDR 0.7
#+Author: Alexander Grothe <seahawk1986@gmx.de>
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* User Stories
** yavdr-full
A User wants to install yaVDR without customization and relies on full automation.

After installing a supported Ubuntu Server version and (if needed) setting up the network connection, the install script is downloaded and started.

The install script adds the ansible PPA, installs ansible and other basic dependencies and runs the automated installation process.

Several roles are used to tie everything together:
- yavdr-common :: installs the basic set of packages needed and preconfigures the system (package sources, package manager settings, entires for network ports, directory structure etc.). Also collects information about the system
- autoinstall-ubuntu-drivers :: uses Ubuntu's automatic detection for additional drivers (e.g. proprietary nvidia driver, microcode updates, VirtualBox guest additions)
- vdr :: install the vdr package and required plugins
- pulseaudio :: install and preconfigure pulseaudio
- yavdr-network :: configure WOL, add nfs client capabilites, install avahi-linker
- samba-server :: install and preconfigure a samba server
- nfs-server :: install nfs-kernelserver and preconfigure nfs exports (and avahi-announcements)
- autoinstall-satip :: install vdr-plugin-satip if a Sat>IP server has been found
- autoinstall-targavfd :: install vdr-plugin-targavfd if display is connected
- autoinstall-imonlcd :: install vdr-plugin-imonlcd if a matchind display is connected
- yavdr-xorg :: install and configure a systemd user session with a running X-server.  A frontend script will manage VDR's frontend and other applications like KODI.  Also choose the best possible output plugin.
- grub-config :: update grub configuration based on executed roles 

*** Using vdr, pulseaudio and xorg together

* Notes :noexport:
:PROPERTIES:
:noexport: nil
:END:      
** TODO [#A] optimize and document data structure for xorg parsing script
** TODO [#A] xorg.conf templates for intel, nvidia, noveau and radeon drivers
*** STARTED BusID für (nvidia) Grafikkarten aus lspci auslesen
Format: "%d:%d:%d" (lspci liefert es als "%04x:%02x:%02x.%x", domain, bus, device, function)
- Wie mit mehreren GPUs umgehen? Priorität bzw. Reihenfolge?
- Was ist mit NVidia Optimus/Bumblebee (AFAIK keine VDPAU-Funktionalität)?
- Wie BusID der xrandr-Ausgabe zuordnen?
*** NVIDIA-Dokumentation zur BusID:
**** What is the format of a PCI Bus ID?
Different tools have different formats for the PCI Bus ID of a PCI device.

The X server's "BusID" X configuration file option interprets the BusID string in the format "bus@domain:device:function" (the "@domain" portion is only needed if the PCI domain is non-zero), in decimal. More specifically,

"%d@%d:%d:%d", bus, domain, device, function
in printf(3) syntax. NVIDIA X driver logging, nvidia-xconfig, and nvidia-settings match the X configuration file BusID convention.

The lspci(8) utility, in contrast, reports the PCI BusID of a PCI device in the format "domain:bus:device.function", printing the values in hexadecimal. More specifically,

"%04x:%02x:%02x.%x", domain, bus, device, function
in printf(3) syntax. The "Bus Location" reported in the /proc/driver/nvidia/gpus/0..N/information files matches the lspci format.
**** Parsen der /proc/driver/nvidia/gpus/*/information Dateien
#+BEGIN_SRC python
# read the BusID for nvidia cards and the model name
# from the /proc/driver/nvidia/gpus/*/information file(s)
from __future__ import print_function
import glob
import re

BusID_RE = re.compile((
    '(?P<domain>[0-9a-fA-F]+)'
    ':'
    '(?P<bus>[0-9a-fA-F]+)'
    ':'
    '(?P<device>[0-9a-fA-F]+)'
    '\.'
    '(?P<function>[0-9a-fA-F]+)'
))
Model_RE = re.compile('Model:\s+(.*)')

def get_BusIDs():
    for gpu_info in glob.glob('/proc/driver/nvidia/gpus/*/information'):
        with open(gpu_info) as f:
            data = f.read()
        match = BusID_RE.search(data)
        if match:
            BusID = "{:d}@{:d}:{:d}:{:d}".format(*(int(n, 16) for n in match.groups()))
            yield BusID, Model_RE.match(data).groups()[0]
if __name__ == '__main__':
    BusIDs = [BusID for BusID in get_BusIDs()]
    print(BusIDs)
#+END_SRC
** TODO [#B] plan for customization of xorg settings by the user
either directly or using a configuration wizard or a web frontend
** SOMEDAY [#C] select best frontend based on GPU
- intel :: softhddevice-vpp
- amd :: softhddevice-vpp
- nvidia :: softhddevice-openglosd (if no HEVC channels are needed)

* Introduction
One of the major problems we faced with customized Ubuntu ISO files as installation media for prior yaVDR versions has been the limited hardware support and the time consuming process to create and update them.  An interesting alternative to this approach is to enable the user to choose the installation medium himself so point releases, kernel versions and additional drivers can be chosen deliberately.  After the basic setup is complete (and a working internet connection is available), a fully customizable install script completes the yaVDR installation.
* Installing and configuring yaVDR with Ansible
This is an experimental feature which allows to set up a yaVDR installation based on a normal Ubuntu Server 16.04.x installation using [[http://ansible.com][Ansible]].

This Manual is written in org-mode for Emacs and can rewrite the complete ansible configuration if you call ~org-babel-tangle~ from within emacs.

To use this playbook on a Ubuntu Server Installation you need to run the following commands:
#+BEGIN_SRC shell
sudo apt-get install git
git clone https://github.com/yavdr/yavdr-ansible.git
cd yavdr-ansible
sudo ./install-yavdr.sh
#+END_SRC

** Install script for local usage
#+BEGIN_SRC shell :tangle install-yavdr.sh :shebang "#!/bin/bash"
if (( $EUID != 0 )); then
    echo "This script must be run using sudo or as root"
    exit
fi

apt-get -y install software-properties-common
# Add repository for ansible
add-apt-repository -y ppa:ansible/ansible
# update packages
apt-get update
# install required packages
apt-get -y install ansible

# TODO: run ansible on local host
ansible-playbook yavdr07.yml -b -i 'localhost_inventory' --connection=local --tags=install
#+END_SRC
* Playbooks
** yavdr07.yml
The ~yavdr07.yml~ playbook sets up a fully-featured yaVDR installation:
#+BEGIN_SRC yaml :tangle yavdr07.yml :mkdirp yes :padline no
---
# file: yavdr07.yml
# this playbook sets up a complete yaVDR 0.7 installation

- name: set up yaVDR
  hosts: all
  become: true
  roles:
     - yavdr-common               # install and configure the basic system
     - autoinstall-ubuntu-drivers # use ubuntu-drivers to install proprietary dirvers
                                  # (e.g. nvidia, virtualbox)
     # - nvidia-387                # install very recent nvidia-387 from ppa:graphics-drivers/ppa
     - vdr                        # install vdr and related packages
     - yavdr-network              # enable network client capabilities
     - samba-install              # install samba server
     - samba-config               # configure samba server
     - nfs-server                 # install nfs server
     - pulseaudio                 # install pulseaudio
     - yavdr-xorg                 # graphical session
     - yavdr-remote               # remote configuration files, services and scripts
     - autoinstall-satip          # install vdr-plugin-satip if a Sat>IP server has been found
     - autoinstall-targavfd       # install vdr-plugin-targavfd if display is connected
     - autoinstall-imonlcd        # install vdr-plugin-imonlcd if a matchind display is connected
     - autoinstall-pvr350         # install vdr-plugin-pgvr350 if a matching card is detected
     - autoinstall-hauppauge-pvr  # install vdr-plugin-pvrinput if a matching card is found
     - autoinstall-dvbsddevice    # install vdr-plugin-dvbsddevice if a matching card is detected
     - kodi
     - dvd                        # set up packages and a udev rule to allow kodi and other players
                                  # to play and eject optical media
     - grub-config                # configure grub
  tags:
     - always

  handlers:
    - import_tasks: handlers/main.yml
#+END_SRC
** yavdr07-headless.yml
For a headless server installation ~yavdr07-headless.yml~ is a good choice
#+BEGIN_SRC yaml :tangle yavdr07-headless.yml :mkdirp yes :padline no
---
# file: yavdr07-headless.yml
# this playbook set up a headless yaVDR 0.7 installation

- name: set up a headless yaVDR server
  hosts: all
  become: true
  roles:
    - yavdr-common
    - vdr
    - yavdr-network
    - samba-server
    - samba-config
    - nfs-server
    - grub-config
    - autoinstall-satip
  tags:
    - always
  handlers:
    - import_tasks: handlers/main.yml
#+END_SRC
* Hosts
This playbook can either be used to run the installation on the localhost or any other PC in the network that can be accessed via ssh. Simply add the host names or IP addresses to the hosts file in the respective section:

#+BEGIN_SRC conf :tangle localhost_inventory :mkdirp yes :padline no
[local]
localhost connection=local

#+END_SRC
* Group Variables
** default text for templates used by ansible
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes :padline no
---
# file: group_vars/all

# this is the standard text to put in templates
ansible_managed_file: "*** YAVDR: ANSIBLE MANAGED FILE ***"
#+END_SRC
** PPAs
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
branch: unstable
ppa_owner: 'ppa:yavdr'
# add the following PPAs
repositories:
  - '{{ ppa_owner }}/main'
  - '{{ ppa_owner }}/unstable-main'
  - '{{ ppa_owner }}/{{branch}}-vdr'
  - '{{ ppa_owner }}/{{branch}}-yavdr'
  - '{{ ppa_owner }}/{{branch}}-kodi'
#+END_SRC
** VDR user, directories, special configuration and plugins
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
# properties of the user vdr and vdr-related options
vdr:
  user: vdr
  group: vdr
  uid: 666
  gid: 666
  home: /var/lib/vdr
  confdir: /var/lib/vdr
  recdir: /srv/vdr/video
  hide_first_recording_level: false
  safe_dirnames: true  # escape characters (useful for windows clients and FAT/NTFS file systems)
  override_vdr_charset: false

# add the vdr plugins you want to install
vdr_plugins:
  - vdr-plugin-devstatus
  - vdr-plugin-markad
  - vdr-plugin-restfulapi
  - vdr-plugin-softhddevice-vpp

#+END_SRC
** Media directories
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
# dictionary of directories for (shared) files. Automatically exported via NFS and Samba if those roles are enabled
media_dirs:
  audio: /srv/audio
  video: /srv/audio
  pictures: /srv/picture
  files: /srv/files
  backups: /srv/backups
  recordings: '{{ vdr.recdir }}'
#+END_SRC
** NFS
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
nfs:
  insecure: false  # set to true for OS X clients or if you plan to use libnfs as unprivileged user (e.g. KODI)
#+END_SRC
** Samba
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
samba:
  workgroup: YAVDR
  windows_compatible: '{{ vdr.safe_dirnames }}'  # set to true to disable unix extensions, enable follow symlinks and wide links
#+END_SRC
** Additional packages
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
# additional packages you want to install
extra_packages:
  - bpython
  - bpython3
  - htop
  - tree
  - vdr-addon-acpiwakeup
  - vim
  - w-scan
#+END_SRC
** System pre-configuration
#+BEGIN_SRC yaml :tangle group_vars/all :mkdirp yes
frontend: vdr
#system:
#  shutdown: poweroff
grub:
  timeout: 0
  boot_options: quiet nosplash
#+END_SRC
* Roles
** install-dependencies
*** tasks
**** main.yml
#+BEGIN_SRC yaml :tangle roles/install-packages/tasks/main.yml :mkdirp yes :padline no
---

- name: apt | install packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    '{{ packages }}'
#+END_SRC

** nvidia-387 drivers
install nvidia-387 from ppa:graphics-drivers/ppa
*** tasks
**** main.yml
#+BEGIN_SRC yaml :tangle roles/nvidia-387/tasks/main.yml :mkdirp yes :padline no
---

- name: add ppa:graphics-drivers/ppa
  apt_repository:
      repo: 'ppa:graphics-drivers/ppa'
      state: present
      update_cache: yes

- name: install nvidia-387 and other required packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - nvidia-387
    - nvidia-settings
#+END_SRC
** yavdr-common
This role is used to set up a basic yaVDR installation. It creates the directories, installs the vdr and other useful packages.
*** default variables
This section is for reference only, please use the files in ~global_vars~ for customizations.
#+BEGIN_SRC yaml :tangle roles/yavdr-common/defaults/main.yml :mkdirp yes :padline no
---
# file: roles/yavdr-common/defaults/main.yml
#+END_SRC

**** Repositories
You can set a list of package repositories which provide the necessary packages. Feel free to use own PPAs if you need special customization to the VDR and it's plugins.
#+BEGIN_SRC yaml :tangle roles/yavdr-common/defaults/main.yml :mkdirp yes :padline yes
branch: unstable
repositories:
  - 'ppa:yavdr/main'
  - 'ppa:yavdr/unstable-main'
  - 'ppa:yavdr/{{branch}}-vdr'
  - 'ppa:yavdr/{{branch}}-kodi'
  - 'ppa:yavdr/{{branch}}-yavdr'
#+END_SRC
**** Drivers
Automatically installed drivers can be very useful, but if you know you need a certain driver, you can simply set it's value to *true*. If you don't want a driver to be installed, set it's value to *false*.
#+BEGIN_SRC yaml :tangle roles/yavdr-common/defaults/main.yml :mkdirp yes :padline yes
drivers:
  sundtek: auto
  ddvb-dkms: auto
#+END_SRC
**** Additional Packages
Add additional packages you would like to have on your installation to this list
#+BEGIN_SRC yaml :tangle roles/yavdr-common/defaults/main.yml :mkdirp yes :padline yes
extra_packages:
  - vim
  - tree
  - w-scan
#+END_SRC
**** VDR
This section allows you to set the recording directory, the user and group that runs the vdr and it's home directory.
 - user :: the vdr user name
 - group :: the main group for the user vdr
 - uid :: the user id for the user vdr
 - gid :: the group id for the group vdr
 - home :: the home directory for the user vdr
 - recdir :: the recording directory used by VDR
 - hide_first_recording_level :: let vdr hide the first directory level of it's recording directory so the content of multiple directories is shown merged together
 - safe_dirnames :: replace special characters which are not compatible with Windows file systems and Samba shares
 - override_vdr_charset :: workaround for channels with weird EPG encodings, e.g. Sky
#+BEGIN_SRC yaml :tangle roles/yavdr-common/defaults/main.yml :mkdirp yes :padline yes
vdr:
    user: vdr
    group: vdr
    uid: 666
    gid: 666
    home: /var/lib/vdr
    recdir: /srv/vdr/video
    hide_first_recording_level: false
    safe_dirnames: true
    override_vdr_charset: false
#+END_SRC
*** tasks
yavdr-common executes the following tasks:
**** main.yml
***** Disable default installation of recommended packages
 This task prevents apt to automatically install all recommended dependencies for packages:
 #+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes :padline no
---

- name: apt | prevent automatic installation of recommended packages
  template:
    src: templates/90-norecommends.j2
    dest: /etc/apt/apt.conf.d/90norecommends

 #+END_SRC
***** Use bash instead of dash
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes
- name: use bash instead of dash
  shell: |
    echo "set dash/sh false" | debconf-communicate
    dpkg-reconfigure -f noninteractive dash
#+END_SRC

***** create user vdr
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :exports none :mkdirp yes
- name: create vdr group
  group:
    gid: '{{ vdr.gid }}'
    state: present
    name: '{{ vdr.group }}'

- name: create vdr user
  user:
    name: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    uid: '{{ vdr.uid }}'
    home: '{{ vdr.home }}'
    shell: '/bin/bash'
    state: present
    append: true
#+END_SRC

***** Disable release-upgrade notifications
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes
- name: disable release-upgrade notifications
  lineinfile:
    dest: /etc/update-manager/release-upgrades
    backrefs: yes
    state: present
    regexp: '^(Prompt=).*$'
    line: '\1never'
#+END_SRC
***** Set up package repositories
 #+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes
- name: add PPAs
  apt_repository:
      repo: '{{ item }}'
      state: present
      update_cache: yes
  with_items: '{{ repositories }}'

- name: run apt-get dist-upgrade
  apt:
      upgrade: dist
      update_cache: yes
 #+END_SRC
***** Install essential packages
 #+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes
- name: apt | install basic packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - anacron
    - acl
    - at
    - bash-completion
    #- biosdevname  # caution: may change device names after a minimal installation!
    - debconf-utils
    - linux-firmware
    - psmisc
    - python-kmodpy
    - python-requests
    - python-usb
    - python3-usb
    - software-properties-common
    - ssh
    - wget
    - wpasupplicant
    - usbutils
    - xfsprogs

 #+END_SRC
***** Install additional packages (user defined)
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml
- name: apt | install extra packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
      '{{ extra_packages }}'
#+END_SRC
***** Gather facts with custom modules 
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :mkdirp yes
- name: get information about usb and pci hardware and loaded kernel modules
  hardware_facts:
    usb: True
    pci: True
    modules: True
    gpus: True
    
- debug:
    var: '{{ item }}'
    verbosity: 1
  with_items:
    - usb
    - pci
    - gpus
    - modules
#+END_SRC
***** create media directories
#+BEGIN_SRC yaml :tangle roles/yavdr-common/tasks/main.yml :exports none :mkdirp yes
- name: create media directories
  file:
    dest: '{{ item.value }}'
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    state: directory
    mode: '0777'
  with_dict: '{{ media_dirs }}'
#+END_SRC
*** templates
#+BEGIN_SRC c :tangle roles/yavdr-common/templates/90-norecommends.j2 :mkdirp yes :padline no
{{ ansible_managed_file | comment('c') }}
// Recommends are as of now still abused in many packages
APT::Install-Recommends "0";
APT::Install-Suggests "0";
#+END_SRC
** vdr
*** tasks
**** install the basic vdr packages
#+BEGIN_SRC yaml :tangle roles/vdr/tasks/main.yml :mkdirp yes :padline no
---
# file: roles/vdr/tasks/main.yml

- name: apt | install basic vdr packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - vdr
    - vdrctl
    - vdr-plugin-dbus2vdr
#+END_SRC
**** Add svdrp/svdrp-disc to /etc/services
#+BEGIN_SRC yaml :tangle roles/vdr/tasks/main.yml :mkdirp yes
- name: add svdrp and svdrp-disc to /etc/services
  lineinfile:
    dest: /etc/services
    state: present
    line: "{{ item }}"
  with_items:
    - "svdrp            6419/tcp"
    - "svdrp-disc       6419/udp"
#+END_SRC
**** Set up the recording directory for the vdr user
#+BEGIN_SRC yaml :tangle roles/vdr/tasks/main.yml :mkdirp yes
- name: create vdr recdir
  file:
    state: directory
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    mode: 0775
    dest: '{{ vdr.recdir }}'

- name: set option to use hide-first-recording-level patch
  blockinfile:
    dest: /etc/vdr/conf.d/04-vdr-hide-first-recordinglevel.conf
    create: true
    block: |
      [vdr]
      --hide-first-recording-level
  when:
    vdr.hide_first_recording_level

- name: create local dir in recdir
  file:
    state: directory
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    mode: '0775'
    dest: '{{ vdr.recdir }}/local'
  when:
    vdr.hide_first_recording_level

# TODO: set recdir, user etc. in /etc/vdr/conf.d/
#+END_SRC
**** Install additional vdr plugins
The additional plugins to install can be set in the variable ~{{vdr_plugins}}~ in the group variables
#+BEGIN_SRC yaml :tangle roles/vdr/tasks/main.yml :mkdirp yes
- name: apt | install additional vdr plugins
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    '{{ vdr_plugins | default({}) }}'
  notify: [ 'Restart VDR' ]
#+END_SRC
**** copy vdr configuration files (if they don't exist yet)
#+BEGIN_SRC yaml :tangle roles/vdr/tasks/main.yml :mkdirp yes
- name: ensure vdr is stopped
  systemd:
    name: vdr.service
    state: stopped
  notify: [ 'Start VDR' ]

- name: "vdr configuration | copy remote.conf if it doesn't exist yet"
  copy:
    src: files/remote.conf
    dest: '{{ vdr.confdir }}/remote.conf'
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    mode: 0644
    force: no

- name: "vdr configuration | copy keymacros.conf if it doesn't exist yet"
  copy:
    src: files/keymacros.conf
    dest: '{{ vdr.confdir }}/keymacros.conf'
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
    mode: 0644
    force: no
#+END_SRC

*** templates
*** files
**** remote.conf
#+BEGIN_SRC conf :tangle roles/vdr/files/remote.conf :mkdirp yes :padline no
LIRC.Up KEY_UP
LIRC.Down KEY_DOWN
LIRC.Menu KEY_MENU
LIRC.Ok KEY_OK
LIRC.Back KEY_ESC
LIRC.Left KEY_LEFT
LIRC.Right KEY_RIGHT
LIRC.Red KEY_RED
LIRC.Green KEY_GREEN
LIRC.Yellow KEY_YELLOW
LIRC.Blue KEY_BLUE
LIRC.0 KEY_0
LIRC.1 KEY_1
LIRC.2 KEY_2
LIRC.3 KEY_3
LIRC.4 KEY_4
LIRC.5 KEY_5
LIRC.6 KEY_6
LIRC.7 KEY_7
LIRC.8 KEY_8
LIRC.9 KEY_9
LIRC.Info KEY_INFO
LIRC.Play KEY_PLAY
LIRC.Pause KEY_PAUSE
LIRC.Play/Pause KEY_PLAYPAUSE
LIRC.Stop KEY_STOP
LIRC.Record KEY_RECORD
LIRC.FastFwd KEY_FASTFORWARD
LIRC.FastRew KEY_REWIND
LIRC.Next KEY_NEXT
LIRC.Prev KEY_BACK
LIRC.Power KEY_POWER2
LIRC.Channel+ KEY_CHANNELUP
LIRC.Channel- KEY_CHANNELDOWN
LIRC.PrevChannel KEY_PREVIOUS
LIRC.Volume+ KEY_VOLUMEUP
LIRC.Volume- KEY_VOLUMEDOWN
LIRC.Mute KEY_MUTE
LIRC.Subtitles KEY_SUBTITLE
LIRC.Schedule KEY_EPG
LIRC.Channels KEY_CHANNEL
LIRC.Commands KEY_FAVORITES
LIRC.Audio KEY_MODE
LIRC.Timers KEY_TIME
LIRC.Recordings KEY_PVR
LIRC.Setup KEY_SETUP
LIRC.User0 KEY_TEXT
LIRC.User1 KEY_PROG1
LIRC.User2 KEY_PROG2
LIRC.User3 KEY_PROG3
LIRC.User4 KEY_PROG4
LIRC.User5 KEY_AUDIO
LIRC.User6 KEY_VIDEO
LIRC.User7 KEY_IMAGES
LIRC.User8 KEY_FN
LIRC.User9 KEY_SCREEN

XKeySym.Up         Up
XKeySym.Down       Down
XKeySym.Menu       Home
XKeySym.Menu       Tab
XKeySym.Menu       KP_Home
XKeySym.Ok         Return
XKeySym.Ok         KP_Enter
XKeySym.Back       BackSpace
XKeySym.Back       KP_Separator
XKeySym.Left       Left
XKeySym.Right      Right
XKeySym.Up         KP_Up
XKeySym.Down       KP_Down
XKeySym.Left       KP_Left
XKeySym.Right      KP_Right
XKeySym.Red        F1
XKeySym.Green      F2
XKeySym.Yellow     F3
XKeySym.Blue       F4
XKeySym.0          0
XKeySym.1          1
XKeySym.2          2
XKeySym.3          3
XKeySym.4          4
XKeySym.5          5
XKeySym.6          6
XKeySym.7          7
XKeySym.8          8
XKeySym.9          9
XKeySym.0          KP_0
XKeySym.1          KP_1
XKeySym.2          KP_2
XKeySym.3          KP_3
XKeySym.4          KP_4
XKeySym.5          KP_5
XKeySym.6          KP_6
XKeySym.7          KP_7
XKeySym.8          KP_8
XKeySym.9          KP_9
XKeySym.Info       End
XKeySym.Info       KP_End
XKeySym.Pause      F9
XKeySym.FastFwd    F6
XKeySym.FastRew    F5
XKeySym.Power      Pause
XKeySym.Volume+    F12
XKeySym.Volume-    F11
XKeySym.Volume+    KP_Add
XKeySym.Volume-    KP_Subtract
XKeySym.Mute       F10
XKeySym.User1      F5
XKeySym.User2      F6
XKeySym.User3      F7
XKeySym.User4      F8
XKeySym.User5      Print
XKeySym.User6      Scroll_Lock
XKeySym.User7      Insert
XKeySym.User8      KP_Divide
XKeySym.User9      KP_Multiply
XKeySym.Audio      Menu
XKeySym.Channel+   Prior
XKeySym.Channel-   Next
XKeySym.Channel+   KP_Prior
XKeySym.Channel-   KP_Next
XKeySym.Volume+    XF86AudioRaiseVolume
XKeySym.Volume-    XF86AudioLowerVolume
XKeySym.Mute       XF86AudioMute
XKeySym.Stop       XF86AudioStop
XKeySym.Play/Pause  XF86AudioPlay
XKeySym.Prev       XF86AudioPrev
XKeySym.Next       XF86AudioNext
#+END_SRC
**** keymacros.conf
#+BEGIN_SRC conf :tangle roles/vdr/files/keymacros.conf :padline no
# Remote control key macros for VDR
#
# Format:
#
# macrokey  key1 key2 key3...
# macrokey  @plugin key1 key2 key3...
#
# See man vdr(5)

Red       Recordings
Green     Schedule
Yellow    Info
Blue      Timers
User0     @osdteletext


#+END_SRC
** STARTED yavdr-network
*** default variables
#+BEGIN_SRC yaml :tangle roles/yavdr-network/main.yml :mkdirp yes :padline no
install_avahi: true
#+END_SRC
*** tasks
#+BEGIN_SRC yaml :tangle roles/yavdr-network/tasks/main.yml :mkdirp yes :padline no
---
# this playbook sets up network services for a yaVDR installation

- name: apt |install packages for network services
  apt:
      name: '{{ item }}'
      state: present
      install_recommends: no
  with_items:
      - avahi-daemon
      - avahi-utils
      #- biosdevname # caution: this may change device names after a minimal installation!
      - ethtool
      - nfs-common
      - vdr-addon-avahi-linker
      - wakeonlan

# Does this really work? We need a way to check if an interface supports WOL - Python Skript?
# - name: check WOL capabilities of network interfaces
#   shell: 'ethtool {{ item }} | grep -Po "(?<=Supports\sWake-on:\s).*$"'
#   register: wol
#   with_items: '{% for interface in ansible_interfaces if interface != 'lo' and interface != 'bond0' %}'
  
- name: restart autofs if running
  systemd:
    name: autofs
    state: restarted
    enabled: yes
    masked: no

- name: ensure autofs is running
  systemd:
    name: autofs
    state: started
    enabled: yes
    masked: no

- name: restart avahi-linker if running
  systemd:
    name: avahi-linker
    state: restarted
    enabled: yes
    masked: no

- name: start avahi-linker
  systemd:
    name: avahi-linker
    state: started
    enabled: yes
    masked: no

- name: enable and start additional services for avahi-linker
  systemd:
    name: '{{ item }}'
    state: started
    enabled: yes
    masked: no
  with_items:
    - vdr-net-monitor
    - vdr-update-monitor
    - prevent-umount-on-pause
#+END_SRC

** nfs-server
*** TODO avahi-services für NFS beim Stoppen des nfs-kernel-servers depublizieren, beim Start wieder announcen
*** tasks
#+BEGIN_SRC yaml :tangle roles/nfs-server/tasks/main.yml :mkdirp yes :padline no
---

- name: install nfs server packages
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - nfs-kernel-server
    - nfs-common

- name: create /etc/exports
  template:
    src: templates/nfs-exports.j2
    dest: /etc/exports
  notify: [ 'Restart NFS Kernel Server' ]

- name: populate /etc/avahi/services
  template:
    src: templates/avahi/service.j2
    dest: '/etc/avahi/services/yavdr-{{ item.key }}.service'
  with_dict: '{{ media_dirs }}'
#+END_SRC
*** templates
**** /etc/exports
#+BEGIN_SRC conf :tangle roles/nfs-server/templates/nfs-exports.j2 :mkdirp yes :padline no
/srv *(rw,fsid=0,sync,no_subtree_check,all_squash,anongid={{ vdr.gid }},anonuid={{ vdr.uid }})
{% for name, path in media_dirs.iteritems() %}
{{ path }} *(rw,fsid={{ loop.index }},sync,no_subtree_check,all_squash,anongid={{ vdr.gid }},anonuid={{ vdr.uid }}{{ ',insecure' if nfs.insecure else '' }})
{% endfor %}
#+END_SRC
**** avahi services
#+BEGIN_SRC xml :tangle roles/nfs-server/templates/avahi/service.j2 :mkdirp yes :padline no
<?xml version="1.0" standalone='no'?>
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<service-group>
<name replace-wildcards="yes">{{ item.key|capitalize }} on %h</name> ## Name
<service>
       <type>_nfs._tcp</type>
       <port>2049</port>
       <txt-record>path={{ item.value }}</txt-record> ## path to shared Folder
       <txt-record>subtype={{ 'vdr' if item.key == 'recordings' else item.key }}</txt-record> ## subtype
</service>
</service-group>
#+END_SRC
** STARTED yavdr-remote
*** default variables
*** tasks
#+BEGIN_SRC yaml :tangle roles/yavdr-remote/tasks/main.yml :mkdirp yes :padline no
---
# This role is used to set up the yaVDR remote control configuration.

- name: apt | install yavdr-remote
  apt:
    name: yavdr-remote
    state: present

- name: apt | install eventlircd
  apt:
    name: eventlircd
    state: present

- name: apt | install lirc
  apt:
    name: lirc
    state: present

- name: stop, mask and disable lircd.socket, lircd.service and lircd-uinput.service # (the default lirc configuration conflicts with eventlircd)
  systemd:
    name: '{{ item }}'
    enabled: no
    state: stopped
    masked: yes
  with_items:
    - lircd.service
    - lircd.socket
    - lircd-uinput.service
  ignore_errors: yes

- name: configure vdr to read from a lircd-compatible socket
  template:
    src: templates/03-vdr-lirc.conf.j2
    dest: /etc/vdr/conf.d/03-vdr-lirc.conf
  notify: ['Restart VDR']

# TODO: upload lircd2uinput package to PPA
#- name: install lircd2uinput
#  tag: install
#  apt:
#      name: lircd2uinput
#      state: present
#  when:
#      install_eventlircd is defined and install_eventlircd
#+END_SRC
*** templates
#+BEGIN_SRC conf :tangle roles/yavdr-remote/templates/03-vdr-lirc.conf.j2 :mkdirp yes :padline no
{% if frontend != 'kodi' %}
[vdr]
--lirc=/var/run/lirc/lircd
{% endif %}
#+END_SRC
*** files

** pulseaudio
*** tasks
#+BEGIN_SRC yaml :tangle roles/pulseaudio/tasks/main.yml :mkdirp yes :padline no
---

- name: apt | install pulseaudio and pavucontrol
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - pulseaudio
    - pavucontrol

- name: create /etc/asound.conf with pulseaudio as default device
  template:
    src: templates/alsa/asound.conf.j2
    dest: /etc/asound.conf
#+END_SRC
*** templates
#+BEGIN_SRC conf :tangle roles/pulseaudio/templates/alsa/asound.conf.j2 :mkdirp yes :padline no
# Use PulseAudio by default
pcm.!default {
  type pulse
  fallback "sysdefault"
  hint {
    show on
    description "Default ALSA Output (currently PulseAudio Sound Server)"
  }
}

ctl.!default {
  type pulse
  fallback "sysdefault"
}
#+END_SRC
** yavdr-xorg
*** About the GUI session
The X-Server is started by using the two systemd units ~xlogin@.service~ and ~x@.service~ provided by the package *xlogin*.  The former is enabled (and started) for the vdr user - which results (using the default settings for the user *vdr* with the uid *666*) in the activation of ~xlogin@vdr.service~ when reaching the graphical.target.

~x@vt7.service~ is started automatically as a dependency of ~xlogin@vdr.service~ and starts the X-server.  ~xlogin@vdr.service~ also starts a systemd user session using ~user@666.service~.

To prevent stopping the X-server when vdr is running, additional dependencies are set up - see the drop-in rules created in ~/etc/systemd/system/vdr.service.d/~.

Basic Services like the session DBus, pulseaudio etc. are started for the ~default.target~ of the session.
The openbox autostart script is used to update the systemd session with the needed session variables.  It creates a file =~/.session-env= which is used as an environment file by ~vdr.service~ (so the vdr knows the *DISPLAY* and can access pulseaudio).

The autostart script then enables all services to be pulled in by yavdr-desktop.target.  As the last step ~yavdr-desktop.target~ is startet, which results in staring ~yavdr-frontend.service~ and additional Units for a second display (openbox and a browser for osd2eb, if available).

# TODO: describe yavdr-frontend

In order to achive a clean shutdown of the session, ~x@t7.service~ is set as a dependency of the systemd unit instance ~user@666.service~ and all processes within the session must be shutdown properly when stopping ~xlogin@vdr.service~.  If systemd units are used within the user session, they must stop their process(es) successfully (you should set them up to accept expected exit codes appropriately).  The window manager /openbox/ is started using the =~/.xinitrc= and stopped using the systemd unit ~exit-wm.service~ (which runs on stopping the jobs pulled in by the ~default.target~ of the session).
*** TODO automatic X-server configuration                        :noexport:
- [X] detect connected display
- [X] read EDID from displays
- [ ] create a xorg.conf for nvidia/intel/amd gpus

**** HOLD Nvidia-GPUs:read  EDID:

#+BEGIN_SRC shell
$ nvidia-xconfig --extract-edids-from-file=/var/log/Xorg.0.log --extract-edids-output-file=/tmp/edid.bin.0

Found 2 EDIDs in "/var/log/Xorg.0.log".
  Wrote EDID for "DELL 2407WFP (CRT-1)" to "/tmp/edid.bin.0.0" (128 bytes).
  Wrote EDID for "ADI A715 (DFP-1)" to "/tmp/edid.bin.0.1" (128 bytes).

$ xrandr -q
Screen 0: minimum 8 x 8, current 3200 x 1200, maximum 8192 x 8192
DVI-I-0 disconnected primary (normal left inverted right x axis y axis)
VGA-0 connected 1920x1200+1280+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200     59.95*+
   1680x1050     59.95  
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
   1280x1024     60.02*+
   1024x768      60.00  
   800x600       60.32  
   640x480       59.95    59.94

$ parse-edid < /tmp/edid.bin.0.1
Checksum Correct

Section "Monitor"
	Identifier "ADI A715"
	ModelName "ADI A715"
	VendorName "ADI"
	# Monitor Manufactured week 15 of 2003
	# EDID version 1.3
	# Digital Display
	DisplaySize 330 270
	Gamma 2.20
	Option "DPMS" "true"
	#Not giving standard mode: 640x480, 60Hz
	#Not giving standard mode: 800x600, 60Hz
	#Not giving standard mode: 1024x768, 60Hz
	#Not giving standard mode: 1280x1024, 60Hz
	Modeline 	"Mode 0" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync 
	Modeline 	"Mode 1" 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync 
EndSection

$ parse-edid < /tmp/edid.bin.0.0
Checksum Correct

Section "Monitor"
	Identifier "DELL 2407WFP"
	ModelName "DELL 2407WFP"
	VendorName "DEL"
	# Monitor Manufactured week 24 of 2007
	# EDID version 1.3
	# Analog Display
	Option "SyncOnGreen" "true"
	DisplaySize 520 330
	Gamma 2.20
	Option "DPMS" "true"
	Horizsync 30-83
	VertRefresh 56-76
	# Maximum pixel clock is 170MHz
	#Not giving standard mode: 1280x1024, 60Hz
	#Not giving standard mode: 1600x1200, 60Hz
	#Not giving standard mode: 1152x864, 75Hz
	#Not giving standard mode: 1680x1050, 60Hz
	Modeline 	"Mode 0" 154.00 1920 1968 2000 2080 1200 1203 1209 1235 +hsync -vsync 
EndSection

#+END_SRC
**** DONE Start X-server with debug-output                      :noexport:
#+BEGIN_SRC conf
# /etc/systemd/system/x-debug@.service
[Unit]
Description=X with verbose logging on %I
Wants=graphical.target
Before=graphical.target
Conflicts=xlogin@vdr.service x@vt7.service

[Service]
Type=forking
ExecStart=/usr/bin/x-daemon -logverbose 6 -noreset %I -config xdiscover.conf
#+END_SRC

#+BEGIN_SRC conf
# /etc/X11/xdiscover.conf
Section "Device"
        Identifier "nvidia"
        Driver  "nvidia"
        Option  "NoLogo"              "true"
        Option  "DynamicTwinView"     "true"
        Option  "NoFlip"              "false"
#        Option  "FlatPanelProperties" "Scaling = Native"
#        Option  "ModeValidation"      "NoVesaModes, NoXServerModes"
#        Option  "ModeDebug"           "true"
#        Option  "HWCursor"            "false"
EndSection

Section "Screen"
        Identifier      "screen"
        Device          "nvidia"
EndSection

Section "Extensions"
        Option  "Composite"           "false"
EndSection

#+END_SRC

**** DONE python-script for parsing xrandr --verbose output
***** Example output
# ION-330-I
#+BEGIN_SRC shell :tangle library/xrandr_output.1
$ xrandr --verbose
Screen 0: minimum 8 x 8, current 1280 x 720, maximum 8192 x 8192
VGA-0 disconnected primary (normal left inverted right x axis y axis)
	Identifier: 0x1c4
	Timestamp:  18571
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: VGA 
		supported: VGA
	ConnectorType: VGA 
	ConnectorNumber: 0 
	_ConnectorLocation: 1 
HDMI-0 connected 1280x720+0+0 (0x1cb) normal (normal left inverted right x axis y axis) 885mm x 498mm
	Identifier: 0x1c5
	Timestamp:  18571
	Subpixel:   unknown
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       0
	CRTCs:      0 1fg
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID: 
		00ffffffffffff004c2d800100000000
		2c0e01038059328c0ae2bda15b4a9824
		15474a20000001010101010101010101
		010101010101011d007251d01e206e28
		550075f23100001e011d00bc52d01e20
		b828554075f23100001e000000fd0032
		3d0f2e08000a202020202020000000fc
		0053414d53554e470a20202020200181
		02031971468413051403122309070783
		01000065030c001000011d8018711c16
		20582c250075f23100009e011d80d072
		1c1620102c258075f23100009e8c0ad0
		8a20e02d10103e960075f2310000188c
		0ad090204031200c40550075f2310000
		18000000000000000000000000000000
		000000000000000000000000000000ca
	BorderDimensions: 4 
		supported: 4
	Border: 39 24 41 21 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: HDMI 
	ConnectorNumber: 1 
	_ConnectorLocation: 2 
  1280x720 (0x1c6)   74.2MHz +HSync +VSync +preferred
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock   45.0KHz
        v: height  720 start  725 end  730 total  750           clock   60.0Hz
  1920x1080 (0x1c7)   74.2MHz +HSync +VSync Interlace
        h: width  1920 start 2008 e#nd 2052 total 2200 skew    0 clock   33.8KHz
        v: height 1080 start 1084 end 1094 total 1124           clock   60.1Hz
  1920x1080 (0x1c8)   74.2MHz +HSync +VSync Interlace
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock   33.7KHz
        v: height 1080 start 1084 end 1094 total 1124           clock   60.0Hz
  1920x1080 (0x1c9)   74.2MHz +HSync +VSync Interlace
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock   28.1KHz
        v: height 1080 start 1084 end 1094 total 1124           clock   50.0Hz
  1280x720 (0x1ca)   74.2MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock   45.0KHz
        v: height  720 start  725 end  730 total  750           clock   59.9Hz
  1280x720 (0x1cb)   74.2MHz +HSync +VSync *current
        h: width  1280 start 1720 end 1760 total 1980 skew    0 clock   37.5KHz
        v: height  720 start  725 end  730 total  750           clock   50.0Hz
  800x600 (0x1cc)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  800x600 (0x1cd)   36.0MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
        v: height  600 start  601 end  603 total  625           clock   56.2Hz
  720x576 (0x1ce)   27.0MHz -HSync -VSync
        h: width   720 start  732 end  796 total  864 skew    0 clock   31.2KHz
        v: height  576 start  581 end  586 total  625           clock   50.0Hz
  720x480 (0x1cf)   27.0MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock   31.5KHz
        v: height  480 start  489 end  495 total  525           clock   59.9Hz
  640x480 (0x1d0)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
  320x240 (0x1d1)   12.6MHz -HSync -VSync DoubleScan
        h: width   320 start  328 end  376 total  400 skew    0 clock   31.5KHz
        v: height  240 start  245 end  246 total  262           clock   60.1Hz
#+END_SRC

# GT210
#+BEGIN_SRC shell :tangle library/xrandr_output.2
$ xrandr --verbose
Screen 0: minimum 8 x 8, current 3200 x 1200, maximum 8192 x 8192
DVI-I-0 disconnected primary (normal left inverted right x axis y axis)
	Identifier: 0x1c4
	Timestamp:  641679
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: VGA 
		supported: VGA
	ConnectorType: DVI-I 
	ConnectorNumber: 0 
	_ConnectorLocation: 0 
VGA-0 connected 1920x1200+1280+0 (0x1c6) normal (normal left inverted right x axis y axis) 519mm x 324mm
	Identifier: 0x1c5
	Timestamp:  641679
	Subpixel:   unknown
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       1
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID: 
		00ffffffffffff0010ac16a0534b4431
		181101030e342178eeee91a3544c9926
		0f5054a54b008180a940714fb3000101
		010101010101283c80a070b023403020
		360007442100001a000000ff00555935
		343537364531444b5320000000fc0044
		454c4c20323430375746500a000000fd
		00384c1e5311000a20202020202000f1
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: VGA 
		supported: VGA
	ConnectorType: VGA 
	ConnectorNumber: 2 
	_ConnectorLocation: 2 
  1920x1200 (0x1c6) 154.000MHz +HSync -VSync *current +preferred
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  74.04KHz
        v: height 1200 start 1203 end 1209 total 1235           clock  59.95Hz
  1680x1050 (0x1c7) 146.250MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.29KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  59.95Hz
  1280x1024 (0x1c8) 135.000MHz +HSync +VSync
        h: width  1280 start 1296 end 1440 total 1688 skew    0 clock  79.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  75.02Hz
  1280x1024 (0x1c9) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1152x864 (0x1ca) 108.000MHz +HSync +VSync
        h: width  1152 start 1216 end 1344 total 1600 skew    0 clock  67.50KHz
        v: height  864 start  865 end  868 total  900           clock  75.00Hz
  1024x768 (0x1cb) 78.750MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock  60.02KHz
        v: height  768 start  769 end  772 total  800           clock  75.03Hz
  1024x768 (0x1cc) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x1cd) 49.500MHz +HSync +VSync
        h: width   800 start  816 end  896 total 1056 skew    0 clock  46.88KHz
        v: height  600 start  601 end  604 total  625           clock  75.00Hz
  800x600 (0x1ce) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  640x480 (0x1cf) 31.500MHz -HSync -VSync
        h: width   640 start  656 end  720 total  840 skew    0 clock  37.50KHz
        v: height  480 start  481 end  484 total  500           clock  75.00Hz
  640x480 (0x1d0) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz
DVI-I-1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x1d1
	Timestamp:  641679
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DVI-I 
	ConnectorNumber: 0 
	_ConnectorLocation: 0 
HDMI-0 connected 1280x1024+0+0 (0x1c9) normal (normal left inverted right x axis y axis) 338mm x 270mm
	Identifier: 0x1d2
	Timestamp:  641679
	Subpixel:   unknown
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       0
	CRTCs:      0 1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID: 
		00ffffffffffff0004895d2320090000
		0f0d0103e0211b782ac5c6a3574a9c23
		124f5421080031404540614081800101
		010101010101302a009851002a403070
		1300520e1100001ea00f200031581c20
		28801400520e1100001e000000ff0033
		31355430324530323333360a000000fc
		0041444920413731350a20202020002b
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: HDMI 
	ConnectorNumber: 1 
	_ConnectorLocation: 1 
  1280x1024 (0x1c9) 108.000MHz +HSync +VSync *current +preferred
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1024x768 (0x1cc) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x1ce) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  640x480 (0x1d3) 25.180MHz -HSync -VSync
        h: width   640 start  648 end  744 total  800 skew    0 clock  31.48KHz
        v: height  480 start  482 end  484 total  525           clock  59.95Hz
  640x480 (0x1d0) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz

#+END_SRC

***** parse hex-strings
#+BEGIN_SRC python
>>> import binascii
>>> s = "deadbeef"
>>> binascii.a2b_hex(s)
b'\xde\xad\xbe\xef'
#+END_SRC
*** default variables
*** tasks

#+BEGIN_SRC yaml :tangle roles/yavdr-xorg/tasks/main.yml :mkdirp yes :padline no
---
# file: roles/yavdr-xorg/tasks/main.yml
- import_tasks: setup-xorg.yml tags=install,update
- import_tasks: detect-xorg.yml tags=xorg:detect,install
- import_tasks: desktop-session.yml tags=install,update
#+END_SRC

#+BEGIN_SRC yaml :tangle roles/yavdr-xorg/tasks/setup-xorg.yml :mkdirp yes :padline no
---
# file: roles/yavdr-xorg/tasks/setup-xorg.yml
- name: create directories for systemd drop-in files
  file:
    dest: '{{ item }}'
    state: directory
  with_items:
    - /etc/systemd/system/x@.service.d/
    - /etc/systemd/system/vdr.service.d/
    - '/etc/systemd/system/user@{{ vdr.uid }}.service.d/'

- name: add dependency to X-server for vdr.service using a drop-in
  template:
    src: templates/vdr-xorg.conf
    dest: /etc/systemd/system/vdr.service.d/vdr-xorg.conf

- name: start x@.service before xlogin@.service
  template:
    src: templates/x@service.d/xlogin.conf.j2
    dest: /etc/systemd/system/x@.service.d/xlogin.conf

- name: load environment file for vdr.service
  template:
    src: templates/systemd/vdr-environ.j2
    dest: /etc/systemd/system/vdr.service.d/load-environ.conf

- name: user@{{ vdr.uid }}.service depends on x@vt7.service
  template:
    src: templates/user@666.service.d/x-dependency.conf.j2
    dest: '/etc/systemd/system/user@{{ vdr.uid }}.service.d/x-dependency.conf'

- name: start softhddevice detached and set audio to pulseaudio
  lineinfile:
    path: /etc/vdr/conf.avail/softhddevice.conf
    line: '{{ item }}'
  with_items:
      - '-D'
      # - '-a pulse' # do we need this with our existing asound.conf?

- name: set a login shell for the user vdr
  user:
      name: '{{ vdr.user }}'
      shell: '/bin/bash'
      state: present
      uid: '{{ vdr.uid }}'
      groups: '{{ vdr.group }}'
      append: yes

- name: apt | install packages for xorg
  apt:
    name: '{{ item }}'
    state: present
  with_items:
    - xlogin
    - xorg
    - xserver-xorg-input-all
    - xserver-xorg-video-all
    - openbox
    - python3-dbus2vdr
    - python3-yavdrfrontend
    - read-edid
    - tmux
    - vdr-plugin-desktop
    #- yavdr-xorg

- name: apt | install desktop programs
  apt:
    name: '{{ item }}'
    state: present
  with_items:
    - xterm
    - firefox
    - kiosk-browser
#+END_SRC

#+BEGIN_SRC yaml :tangle roles/yavdr-xorg/tasks/detect-xorg.yml :mkdirp yes :padline no
---
# file: roles/yavdr-xorg/tasks/detect-xorg.yml

- name: "expand template for x-verbose@.service"
  template:
    src: "templates/systemd/system/x-verbose@.service.j2"
    dest: "/etc/systemd/system/x-verbose@.service"

- name: "expand template for xorg-verbose.conf"
  template:
    src: "templates/xorg-verbose.conf.j2"
    dest: "/etc/X11/xorg-verbose.conf"

- name: Stop VDR
  systemd:
    name: vdr.service
    state: stopped
    enabled: yes
  notify: ['Start VDR']

- name: Stop xlogin
  systemd:
    name: 'xlogin@{{ vdr.user }}.service'
    state: stopped

- name: Stop x
  systemd:
    name: x@vt7.service
    state: stopped

- name: "start x-verbose@.service"
  systemd:
    name: "x-verbose@vt7.service"
    state: started
    enabled: false
    masked: false
    daemon_reload: true

- name: "wait a little bit, so X has some time to start up (needed?)"
  wait_for:
    timeout: 3

- name: "detect xorg configuration"
  action: xrandr_facts

- debug:
    var: xorg.primary

- debug:
    var: xorg.secondary
  when: xorg.secondary is defined

- name: "stop x-verbose@vt7.service"
  systemd:
    name: "x-verbose@vt7.service"
    state: stopped
    enabled: false
    masked: true

# TODO: expand template for xorg.conf (or snippets)
#       with respect for the available graphics card driver
#       nvidia, noveau, intel, radeon
- name: create xorg.conf (for nvidia driver)
  template:
    src: templates/xorg.conf.j2
    dest: /etc/X11/xorg.conf
    backup: yes
#+END_SRC

#+BEGIN_SRC yaml :tangle roles/yavdr-xorg/tasks/desktop-session.yml :mkdirp yes :padline no
---
# file: roles/yavdr-xorg/tasks/desktop-session.yml

- name: create folders for user configuration files
  file:
    state: directory
    dest: '{{ item }}'
    mode: '0775'
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'
  with_items:
    - '{{ vdr.home }}/.config/systemd/user'
    - '{{ vdr.home }}/.config/openbox'
    - '{{ vdr.home }}/.config/pulse'

- name: expand template for .xinitrc for vdr user
  template:
      src: 'templates/.xinitrc.j2'
      dest: '{{ vdr.home }}/.xinitrc'
      mode: 0755
      owner: '{{ vdr.user }}'
      group: '{{ vdr.group }}'

- name: expand template for openbox autostart
  template:
      src: 'templates/openbox/autostart.j2'
      dest: '{{ vdr.home }}/.config/openbox/autostart'
      mode: 0755
      owner: '{{ vdr.user }}'
      group: '{{ vdr.group }}'

- name: expand rc.xml for openbox
  template:
      src: 'templates/openbox/rc.xml.j2'
      dest: '{{ vdr.home }}/.config/openbox/rc.xml'
      mode: 0644
      owner: '{{ vdr.user }}'
      group: '{{ vdr.group }}'

- name: create yavdr-desktop.target for the user session
  template:
      src: 'templates/systemd/user/yavdr-desktop.target.j2'
      dest: '{{ vdr.home }}/.config/systemd/user/yavdr-desktop.target'
      mode: 0644
      owner: '{{ vdr.user }}'
      group: '{{ vdr.group }}'

- name: disable pulseaudio autospawning
  lineinfile:
    path: '{{ vdr.home }}/.config/pulse/client.conf'
    line: 'autospawn = no'
    create: yes
    state: present
    owner: '{{ vdr.user }}'
    group: '{{ vdr.group }}'

- name: create tmux.service for the session
  template:
    src: roles/yavdr-xorg/templates/systemd/user/tmux.service.j2
    dest: '{{ vdr.home }}/.config/systemd/user/tmux.service'

- name: create wm-exit.service for the session
  template:
    src: roles/yavdr-xorg/templates/systemd/user/wm-exit.service.j2
    dest: '{{ vdr.home }}/.config/systemd/user/wm-exit.service'

- name: create detect-second-display.service for the session
  template:
    src: templates/systemd/user/detect-second-display.service.j2
    dest: '{{ vdr.home }}/.config/systemd/user/detect-second-display.service'

- name: create openbox-second.service for the session
  template:
    src: templates/systemd/user/openbox-second.service.j2
    dest: '{{ vdr.home }}/.config/systemd/user/openbox-second.service'

- name: create osd2web.service for the session
  template:
    src: templates/systemd/user/osd2web.service.j2
    dest: '{{ vdr.home }}/.config/systemd/user/osd2web.service'

- name: link /usr/bin/start-desktop to /var/lib/vdr/plugins/desktop/starter
  file:
    src: /usr/bin/start-desktop
    dest: /var/lib/vdr/plugins/desktop/starter
    state: link
  
- name: enable and start xlogin for the vdr user
  systemd:
    daemon_reload: yes
    name: 'xlogin@{{ vdr.user }}'
    enabled: yes
    state: started
#+END_SRC
*** templates
**** xorg
***** x-verbose@.service
#+BEGIN_SRC conf :tangle "roles/yavdr-xorg/templates/systemd/system/x-verbose@.service.j2" :padline no
# file: roles/yavdr-xorg/templates/systemd/system/x-verbose@.service.j2
[Unit]
Description=X with verbose logging on %I
Wants=graphical.target
Before=graphical.target

[Service]
Type=forking
ExecStart=/usr/bin/x-daemon -logverbose 6 -noreset %I -config /etc/X11/xorg-verbose.conf
#+END_SRC
***** Drop-in snippet for x@.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/x@service.d/xlogin.conf.j2 :mkdirp yes :padline no
[Unit]
Before=xlogin@{{ vdr.user }}.service
#+END_SRC

#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/user@666.service.d/x-dependency.conf.j2 :mkdirp yes :padline no
[Unit]
Wants=x@vt7.service
After=x@vt7.service

[Service]
TimeoutStopSec=20
KillMode=mixed
#+END_SRC

***** Drop-in snippet for vdr.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/vdr-xorg.conf :mkdirp yes :padline no
# file: roles/yavdr-xorg/templates/vdr-xorg.conf
# {{ ansible_managed_file }}
[Unit]
After=x@vt7.service
Wants=x@vt7.service
#BindsTo=x@vt7.service
#+END_SRC
***** .xinitrc 
#+BEGIN_SRC shell :tangle roles/yavdr-xorg/templates/.xinitrc.j2 :mkdirp yes :padline no
#!/bin/bash
# {{ ansible_managed_file }}
exec openbox-session
#+END_SRC
***** xorg.conf
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/xorg-verbose.conf.j2
Section "Device"
        Identifier "nvidia"
        Driver  "nvidia"
        Option  "NoLogo"              "true"
        Option  "DynamicTwinView"     "true"
        Option  "NoFlip"              "false"
#        Option  "FlatPanelProperties" "Scaling = Native"
#        Option  "ModeValidation"      "NoVesaModes, NoXServerModes"
#        Option  "ModeDebug"           "true"
#        Option  "HWCursor"            "false"
EndSection

Section "Screen"
        Identifier      "screen"
        Device          "nvidia"
EndSection

Section "Extensions"
        Option  "Composite"           "false"
EndSection
#+END_SRC
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/xorg.conf.j2
{{ ansible_managed_file | comment }}

Section "ServerLayout"
    Identifier     "Layout0"
    Screen         0  "Screen0" 0 0
{% if xorg.secondary is defined %}
    Screen         1  "Screen1" RightOf "Screen0"
{% endif %}
    #InputDevice    "Keyboard0" "CoreKeyboard"
    #InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "InputClass"
    Identifier "exclude eventlircd devices"
    MatchTag   "eventlircd"
    Option     "Ignore"    "True"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "{{ xorg.primary.vendor }}"
    ModelName      "{{ xorg.primary.model }}"
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "True"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option         "NoLogo"              "true"
{% if xorg.primary.bus_id is defined %}
    BoardName      "{{ xorg.primary.gpu_name }}"
    BusID          "{{ xorg.primary.bus_id }}"
{% else %}
    BoardName      "Unknown"
{% endif %}
    Screen          0
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "nvidiaXineramaInfoOrder" "{{ xorg.primary.connector }}"
    Option         "ConnectedMonitor" "{{ xorg.primary.connector }}{% if xorg.secondary is defined %}, {{ xorg.secondary.connector }}{% endif %}"
    Option         "UseDisplayDevice" "{{ xorg.primary.connector }}"
    Option         "CustomEDID" "{{ xorg.primary.connector }}:/etc/X11/edid.{{ xorg.primary.connector }}.bin"
    Option         "metamodes" "{{ xorg.primary.connector }}: {{ xorg.primary.mode }} +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

{% if xorg.secondary is defined %}
Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option  "NoLogo"              "true"
{% if xorg.secondary.bus_id is defined %}
    BoardName      "{{ xorg.primary.gpu_name }}"
    BusID          "{{ xorg.primary.bus_id }}"
{% else %}
    BoardName      "Unknown"
{% endif %}
    Screen          1
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "{{ xorg.secondary.vendor }}"
    ModelName      "{{ xorg.secondary.model }}"
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "nvidiaXineramaInfoOrder" "{{ xorg.secondary.connector }}"
    Option         "ConnectedMonitor" "{{ xorg.secondary.connector }}"
    Option         "UseDisplayDevice" "{{ xorg.secondary.connector }}"
    Option         "CustomEDID" "{{ xorg.secondary.connector }}:/etc/X11/edid.{{ xorg.secondary.connector }}.bin"
    Option         "metamodes" "{{ xorg.secondary.connector }}: {{ xorg.secondary.mode }} +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
{% endif %}
#+END_SRC

#+BEGIN_SRC shell :tangle roles/template-test/templates/xorg.conf_test.j2
{{ ansible_managed_file | comment }}

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    {% if xorg.best_tv_mode.secondary is defined %}
    Screen      1  "Screen1" RightOf "Screen0"
    {% endif %}
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

# ignore devices with eventlircd tag 
# ENV{ID_INPUT.tags}+="eventlircd"
# must be set by an udev rule
Section "InputClass"
    Identifier "ignore eventlircd devices"
    MatchTag "eventlircd"
    Option "Ignore" "True"
EndSection



Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection


Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
{# TODO: VGA2SCART support (if needed)
{% if system.x11.display.0.default == "VGA2Scart_4_3" or system.x11.display.0.default == "VGA2Scart_16_9" %}
    HorizSync       14-17
    VertRefresh     49-61
    {% if system.x11.display.0.default == "VGA2Scart_4_3" %}
    Modeline "VGA2Scart_4_3" 13.875 720 744 808 888 576 580 585 625 -HSync -Vsync interlace
    {% elif system.x11.display.0.default == "VGA2Scart_16_9" %}
    Modeline "VGA2Scart_16_9" 19 1024 1032 1120 1216 576 581 586 625 -Hsync -Vsync interlace
    {% endif %}
{% endif %}
#}
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "True"
EndSection


{% if xrandr.best_tv_mode.secondary is defined %}
Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Unknown"
{#
{% if system.x11.display.1.default in ("VGA2Scart_4_3",  "VGA2Scart_16_9") %}
    HorizSync       14-17
    VertRefresh     49-61
    {% if system.x11.display.1.default == "VGA2Scart_4_3" %}
    Modeline "VGA2Scart_4_3" 13.875 720 744 808 888 576 580 585 625 -HSync -Vsync interlace
    {% elif system.x11.display.1.default == "VGA2Scart_16_9" %}
    Modeline "VGA2Scart_16_9" 19 1024 1032 1120 1216 576 581 586 625 -Hsync -Vsync interlace
    {% endif %}
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "True"
{% endif %}
#}
EndSection
{% endif %}

Section "Device"
    Identifier     "Device0"
{% if system.hardware.nvidia.detected %}
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
{% endif %}
    Screen          0
    Option         "DPI" "100x100"
{% if system.hardware.nvidia.busid is defined and system.hardware.busid %}
    BusID          "PCI: {{ system.hardware.nvidia.busid }}"
{% endif %}
    Option         "NoLogo" "True"
    Option         "UseEvents" "True"
    Option         "TripleBuffer" "False"
    Option         "AddARGBGLXVisuals" "True"
    Option         "TwinView" "0"
    Option         "DynamicTwinView" "0"
    Option         "OnDemandVBlankinterrupts" "on"
    Option         "FlatPanelProperties" "Scaling = Native"
EndSection

{% if xrandr.best_tv_mode.secondary is defined %}
Section "Device"
    Identifier     "Device1"
    {% if system.hardware.nvidia.detected %}
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    {% endif %}
    Screen          1
    {% if system.hardware.nvidia.busid is defined and system.hardware.nvidia.busid %}
    BusID          "PCI: {{ system.hardware.nvidia.busid }}"
    {% endif %}
    Option         "NoLogo" "True"
    Option         "UseEvents" "True"
    Option         "TripleBuffer" "False"
    Option         "AddARGBGLXVisuals" "True"
    Option         "TwinView" "0"
    Option         "DynamicTwinView" "0"
EndSection
{% endif %}


Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
{% if xrandr.best_tv_mode.primary is defined %}
        Modes      "{{ xrandr.best_tv_mode.primary.mode }}"{#{% for mode in xrandr %}{% if mode != system.x11.display.0.default %} "{{ mode }}"{% endif %}{% endfor %}#} nvidia-auto-select

{% elif system.hardware.nvidia.detected == 1 %}
        Modes      "nvidia-auto-select"
{% endif %}
    EndSubSection
{% if system.x11.display.0.default or system.x11.default %}
    {% if system.x11.display.0.device is definded and system.x11.display.0.device %}
    Option         "ConnectedMonitor" {{ system.x11.display.0.device }}
    {% else %}
    Option         "ConnectedMonitor" {{ system.x11.default }}
    {% endif %}
    #     Option         "ConnectedMonitor" "<?cs if:(?system.x11.display.0.device) ?><?cs call:fix_display_name(system.x11.display.0.device) ?><?cs else ?><?cs var:system.x11.default ?><?cs /if ?><?cs if:(?system.x11.dualhead.enabled && system.x11.dualhead.enabled == 1) ?>, <?cs call:fix_display_name(system.x11.display.1.device) ?><?cs /if ?>"
    #Option         "ConnectedMonitor"
    "<?cs if:(?system.x11.display.0.device) ?>
          <?cs call:fix_display_name(system.x11.display.0.device) ?>
     <?cs else ?>
          <?cs var:system.x11.default ?>
     <?cs /if ?>
     <?cs if:(?system.x11.dualhead.enabled && system.x11.dualhead.enabled == 1) ?>, <?cs call:fix_display_name(system.x11.display.1.device) ?><?cs /if ?>"
#     Option         "UseDisplayDevice" "<?cs if:(?system.x11.display.0.device) ?><?cs call:fix_display_name(system.x11.display.0.device) ?><?cs else ?><?cs var:system.x11.default ?><?cs /if ?>"
# <?cs /if ?>
# <?cs if:(?system.hardware.nvidia.0.edid && system.hardware.nvidia.0.edid == "1") ?>
#     Option         "CustomEDID" "<?cs call:fix_display_name(system.x11.display.0.device) ?>:/etc/X11/edid.0.yavdr"
# <?cs /if ?>
# <?cs if:(system.hardware.nvidia.detected == 1 && ?system.x11.display.0.device) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.0.device) ?>: <?cs var:system.x11.display.0.default ?> { ViewPortIn=<?cs var:system.x11.display.0.viewport.in.x ?>x<?cs var:system.x11.display.0.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.0.viewport.out.x ?>x<?cs var:system.x11.display.0.viewport.out.y ?>+<?cs var:system.x11.display.0.viewport.out.plusx ?>+<?cs var:system.x11.display.0.viewport.out.plusy ?> }"
# <?cs each:mode = system.x11.display.0.mode ?><?cs if:(mode != system.x11.display.0.default) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.0.device) ?>: <?cs var:mode ?> { ViewPortIn=<?cs var:system.x11.display.0.viewport.in.x ?>x<?cs var:system.x11.display.0.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.0.viewport.out.x ?>x<?cs var:system.x11.display.0.viewport.out.y ?>+<?cs var:system.x11.display.0.viewport.out.plusx ?>+<?cs var:system.x11.display.0.viewport.out.plusy ?> }"<?cs /if ?><?cs /each ?> 
{% endif %}
EndSection

{% if system.x11.dualhead.enabled == "1" %}
Section "Screen"

     Identifier     "Screen1"
     Device         "Device1"
     Monitor        "Monitor1"
     DefaultDepth    24
     SubSection     "Display"
         Depth       24
{% if system.x11.display.0.default is defined and system.x11.display.0.default %}
         Modes      "{{ system.x11.display.1.default }}"{% for mode in system.x11.display.1.mode %}{% if mode != system.x11.display.1.default %} "{{ mode }}"{% endif %}{% endfor %}

{% elif system.hardware.nvidia.detected == "1" %}
         Modes      "nvidia-auto-select"
{% endif %}
      EndSubSection

# <?cs if:(?system.x11.display.1.default && system.x11.display.1.default != "" && system.x11.display.1.default != "disabled") ?>
#     Option         "UseDisplayDevice" "<?cs call:fix_display_name(system.x11.display.1.device) ?>"
# <?cs /if ?>
# <?cs if:(?system.hardware.nvidia.1.edid && system.hardware.nvidia.1.edid == "1") ?>
#     Option         "CustomEDID" "<?cs call:fix_display_name(system.x11.display.1.device) ?>:/etc/X11/edid.1.yavdr"
# <?cs /if ?>
# <?cs if:(system.hardware.nvidia.detected == 1 && ?system.x11.display.1.device) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.1.device) ?>: <?cs var:system.x11.display.1.default ?> { ViewPortIn=<?cs var:system.x11.display.1.viewport.in.x ?>x<?cs var:system.x11.display.1.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.1.viewport.out.x ?>x<?cs var:system.x11.display.1.viewport.out.y ?>+<?cs var:system.x11.display.1.viewport.out.plusx ?>+<?cs var:system.x11.display.1.viewport.out.plusy ?> }"
# <?cs each:mode = system.x11.display.1.mode ?><?cs if:(mode != system.x11.display.1.default) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.1.device) ?>: <?cs var:mode ?> { ViewPortIn=<?cs var:system.x11.display.1.viewport.in.x ?>x<?cs var:system.x11.display.1.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.1.viewport.out.x ?>x<?cs var:system.x11.display.1.viewport.out.y ?>+<?cs var:system.x11.display.1.viewport.out.plusx ?>+<?cs var:system.x11.display.1.viewport.out.plusy ?> }"<?cs /if ?><?cs /each ?>
# <?cs /if ?>
EndSection
{% endif %}
#+END_SRC
**** vdr
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/vdr-environ.j2
[Service]
Environment=XDG_RUNTIME_DIR=/run/user/{{ vdr.uid }}/
EnvironmentFile=-/var/lib/vdr/.session-env
#+END_SRC
**** Systemd User Session
***** yavdr-desktop.target
#+BEGIN_SRC shell :tangle roles/yavdr-xorg/templates/systemd/user/yavdr-desktop.target.j2 :mkdirp yes :padline no
[Unit]
Description=yaVDR Desktop
Requires=default.target
After=default.target pulseaudio.service
Wants=dbus.service pulseaudio.service
AllowIsolate=yes
#+END_SRC

***** detect-second-display
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/user/detect-second-display.service.j2 :mkdirp yes :padline no
[Unit]
Description=Detect second DISPLAY using xrandr

[Service]
Type=oneshot
ExecStart=/bin/bash -c 'export DISPLAY=$DISPLAY.1; xrandr -q | grep "connected" && echo "DISPLAY=$DISPLAY" > ~/.second_display || rm -f ~/.second_display'

[Install]
WantedBy=yavdr-desktop.target
#+END_SRC
***** openbox-second.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/user/openbox-second.service.j2 :mkdirp yes :padline no
[Unit]
Description=Start openbox on the second DISPLAY if it exists
After=detect-second-display.service
Wants=detect-second-display.service
Before=yavdr-frontend.service
ConditionFileNotEmpty=%h/.second_display

[Service]
PassEnvironment=XDG_RUNTIME_DIR DBUS_SESSION_BUS_ADDRESS
EnvironmentFile=%h/.second_display
ExecStart=/usr/bin/openbox --config-file %h/.config/openbox/rc.xml

[Install]
WantedBy=yavdr-desktop.target
#+END_SRC
***** osd2web.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/user/osd2web.service.j2 :mkdirp yes :padline no
[Unit]
Description=Start a kiosk browser on the second DISPLAY if it exists
After=detect-second-display.service openbox-second.service
Wants=detect-second-display.service openbox-second.service
ConditionFileNotEmpty=%h/.second_display

[Service]
EnvironmentFile=%h/.second_display
PassEnvironment=XDG_RUNTIME_DIR DBUS_SESSION_BUS_ADDRESS
ExecStart=/usr/bin/on_vdr -o -c 'kiosk-browser "http://localhost:4444/skins/horchiTft/index.html?theme=blue&onlyView=1"'
KillSignal=SIGINT

[Install]
WantedBy=yavdr-desktop.target
#+END_SRC
***** tmux.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/user/tmux.service.j2 :mkdirp yes :padline no
[Unit]
Description=Start tmux in detached session

[Service]
EnvironmentFile=-%h/.session-env
Type=forking
ExecStart=/usr/bin/tmux new-session -s use-session -d
ExecStop=/usr/bin/tmux kill-session -t %u
Restart=always

[Install]
WantedBy=default.target
#+END_SRC
***** wm-exit.service
#+BEGIN_SRC conf :tangle roles/yavdr-xorg/templates/systemd/user/wm-exit.service.j2 :mkdirp yes :padline no
[Unit]
Description=exit window manager gracefully

[Service]
ExecStart=/bin/true
ExecStop=/usr/bin/openbox --exit
RemainAfterExit=True

[Install]
WantedBy=default.target
#+END_SRC
**** openbox
***** autostart
#+BEGIN_SRC shell :tangle roles/yavdr-xorg/templates/openbox/autostart.j2 :mkdirp yes :shebang #!/bin/bash
# forward environment variables to an environment file and the systemd user session
env | grep "DISPLAY\|DBUS_SESSION_BUS_ADDRESS\|XDG_RUNTIME_DIR" > ~/.session-env
systemctl --user import-environment DISPLAY XAUTHORITY XDG_RUNTIME_DIR DBUS_SESSION_BUS_ADDRESS

enabled_services=(
    "tmux.service" "detect-second-display.service"
    "openbox-second.service" "osd2web.service"
    "yavdr-frontend.service" "pulseaudio.socket"
    "pulseaudio.service" "wm-exit.service")
disabled_services=()

# enable configured services for the user session
for service in "${enabled_services[@]}"; do
  systemctl --user enable "$service"
done

# disable unwanted services for the user session
for service in "${disabled_services[@]}"; do
  systemctl --user disable "$service"
done

if which dbus-update-activation-environment >/dev/null 2>&1; then
        dbus-update-activation-environment DISPLAY XAUTHORITY XDG_RUNTIME_DIR
fi

# start systemd units for the yavdr user session
systemctl --user isolate yavdr-desktop.target
#+END_SRC
***** rc.xml
#+BEGIN_SRC xml :tangle roles/yavdr-xorg/templates/openbox/rc.xml.j2 :mkdirp yes :padline no
<?xml version="1.0" encoding="UTF-8"?>
<openbox_config xmlns="http://openbox.org/3.4/rc" xmlns:xi="http://www.w3.org/2001/XInclude">
<!-- Do not edit this file, it will be overwritten on install.
        Copy the file to $HOME/.config/openbox/ instead. -->
  <resistance>
    <strength>10</strength>
    <screen_edge_strength>20</screen_edge_strength>
  </resistance>
  <focus>
    <focusNew>yes</focusNew>
    <!-- always try to focus new windows when they appear. other rules do
       apply -->
    <followMouse>no</followMouse>
    <!-- move focus to a window when you move the mouse into it -->
    <focusLast>yes</focusLast>
    <!-- focus the last used window when changing desktops, instead of the one
       under the mouse pointer. when followMouse is enabled -->
    <underMouse>no</underMouse>
    <!-- move focus under the mouse, even when the mouse is not moving -->
    <focusDelay>200</focusDelay>
    <!-- when followMouse is enabled, the mouse must be inside the window for
       this many milliseconds (1000 = 1 sec) before moving focus to it -->
    <raiseOnFocus>no</raiseOnFocus>
    <!-- when followMouse is enabled, and a window is given focus by moving the
       mouse into it, also raise the window -->
  </focus>
  <placement>
    <policy>Smart</policy>
    <!-- 'Smart' or 'UnderMouse' -->
    <center>yes</center>
    <!-- whether to place windows in the center of the free area found or
       the top left corner -->
    <monitor>Active</monitor>
    <!-- with Smart placement on a multi-monitor system, try to place new windows
       on: 'Any' - any monitor, 'Mouse' - where the mouse is, 'Active' - where
       the active window is, 'Primary' - only on the primary monitor -->
    <primaryMonitor>Active</primaryMonitor>
    <!-- The monitor where Openbox should place popup dialogs such as the
       focus cycling popup, or the desktop switch popup.  It can be an index
       from 1, specifying a particular monitor.  Or it can be one of the
       following: 'Mouse' - where the mouse is, or
                  'Active' - where the active window is -->
  </placement>
  <theme>
    <name>Onyx</name>
    <titleLayout>NLIMC</titleLayout>
    <!--
      available characters are NDSLIMC, each can occur at most once.
      N: window icon
      L: window label (AKA title).
      I: iconify
      M: maximize
      C: close
      S: shade (roll up/down)
      D: omnipresent (on all desktops).
  -->
    <keepBorder>yes</keepBorder>
    <animateIconify>yes</animateIconify>
    <font place="ActiveWindow">
      <name>sans</name>
      <size>8</size>
      <!-- font size in points -->
      <weight>bold</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
    <font place="InactiveWindow">
      <name>sans</name>
      <size>8</size>
      <!-- font size in points -->
      <weight>bold</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
    <font place="MenuHeader">
      <name>sans</name>
      <size>9</size>
      <!-- font size in points -->
      <weight>normal</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
    <font place="MenuItem">
      <name>sans</name>
      <size>9</size>
      <!-- font size in points -->
      <weight>normal</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
    <font place="ActiveOnScreenDisplay">
      <name>sans</name>
      <size>9</size>
      <!-- font size in points -->
      <weight>bold</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
    <font place="InactiveOnScreenDisplay">
      <name>sans</name>
      <size>9</size>
      <!-- font size in points -->
      <weight>bold</weight>
      <!-- 'bold' or 'normal' -->
      <slant>normal</slant>
      <!-- 'italic' or 'normal' -->
    </font>
  </theme>
  <desktops>
    <!-- this stuff is only used at startup, pagers allow you to change them
       during a session

       these are default values to use when other ones are not already set
       by other applications, or saved in your session

       use obconf if you want to change these without having to log out
       and back in -->
    <number>2</number>
    <firstdesk>1</firstdesk>
    <names>
      <!-- set names up here if you want to, like this:
    <name>desktop 1</name>
    <name>desktop 2</name>
    -->
    </names>
    <popupTime>875</popupTime>
    <!-- The number of milliseconds to show the popup for when switching
       desktops.  Set this to 0 to disable the popup. -->
  </desktops>
  <resize>
    <drawContents>yes</drawContents>
    <popupShow>Nonpixel</popupShow>
    <!-- 'Always', 'Never', or 'Nonpixel' (xterms and such) -->
    <popupPosition>Center</popupPosition>
    <!-- 'Center', 'Top', or 'Fixed' -->
    <popupFixedPosition>
      <!-- these are used if popupPosition is set to 'Fixed' -->
      <x>10</x>
      <!-- positive number for distance from left edge, negative number for
         distance from right edge, or 'Center' -->
      <y>10</y>
      <!-- positive number for distance from top edge, negative number for
         distance from bottom edge, or 'Center' -->
    </popupFixedPosition>
  </resize>
  <!-- You can reserve a portion of your screen where windows will not cover when
     they are maximized, or when they are initially placed.
     Many programs reserve space automatically, but you can use this in other
     cases. -->
  <margins>
    <top>0</top>
    <bottom>0</bottom>
    <left>0</left>
    <right>0</right>
  </margins>
  <dock>
    <position>TopLeft</position>
    <!-- (Top|Bottom)(Left|Right|)|Top|Bottom|Left|Right|Floating -->
    <floatingX>0</floatingX>
    <floatingY>0</floatingY>
    <noStrut>no</noStrut>
    <stacking>Above</stacking>
    <!-- 'Above', 'Normal', or 'Below' -->
    <direction>Vertical</direction>
    <!-- 'Vertical' or 'Horizontal' -->
    <autoHide>no</autoHide>
    <hideDelay>300</hideDelay>
    <!-- in milliseconds (1000 = 1 second) -->
    <showDelay>300</showDelay>
    <!-- in milliseconds (1000 = 1 second) -->
    <moveButton>Middle</moveButton>
    <!-- 'Left', 'Middle', 'Right' -->
  </dock>
  <keyboard>
    <chainQuitKey>C-g</chainQuitKey>
    <!-- Keybindings for desktop switching -->
    <keybind key="C-A-Left">
      <action name="GoToDesktop">
        <to>left</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="C-A-Right">
      <action name="GoToDesktop">
        <to>right</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="C-A-Up">
      <action name="GoToDesktop">
        <to>up</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="C-A-Down">
      <action name="GoToDesktop">
        <to>down</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="S-A-Left">
      <action name="SendToDesktop">
        <to>left</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="S-A-Right">
      <action name="SendToDesktop">
        <to>right</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="S-A-Up">
      <action name="SendToDesktop">
        <to>up</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="S-A-Down">
      <action name="SendToDesktop">
        <to>down</to>
        <wrap>no</wrap>
      </action>
    </keybind>
    <keybind key="W-F1">
      <action name="GoToDesktop">
        <to>1</to>
      </action>
    </keybind>
    <keybind key="W-F2">
      <action name="GoToDesktop">
        <to>2</to>
      </action>
    </keybind>
    <keybind key="W-F3">
      <action name="GoToDesktop">
        <to>3</to>
      </action>
    </keybind>
    <keybind key="W-F4">
      <action name="GoToDesktop">
        <to>4</to>
      </action>
    </keybind>
    <keybind key="W-d">
      <action name="ToggleShowDesktop"/>
    </keybind>
    <!-- Keybindings for windows -->
    <keybind key="A-F4">
      <action name="Close"/>
    </keybind>
    <keybind key="A-Escape">
      <action name="Lower"/>
      <action name="FocusToBottom"/>
      <action name="Unfocus"/>
    </keybind>
    <keybind key="A-space">
      <action name="ShowMenu">
        <menu>client-menu</menu>
      </action>
    </keybind>
    <!-- Take a screenshot of the current window with scrot when Alt+Print are pressed -->
    <keybind key="A-Print">
      <action name="Execute">
        <command>scrot -s</command>
      </action>
    </keybind>
    <!-- Keybindings for window switching -->
    <keybind key="A-Tab">
      <action name="NextWindow">
        <finalactions>
          <action name="Focus"/>
          <action name="Raise"/>
          <action name="Unshade"/>
        </finalactions>
      </action>
    </keybind>
    <keybind key="A-S-Tab">
      <action name="PreviousWindow">
        <finalactions>
          <action name="Focus"/>
          <action name="Raise"/>
          <action name="Unshade"/>
        </finalactions>
      </action>
    </keybind>
    <keybind key="C-A-Tab">
      <action name="NextWindow">
        <panels>yes</panels>
        <desktop>yes</desktop>
        <finalactions>
          <action name="Focus"/>
          <action name="Raise"/>
          <action name="Unshade"/>
        </finalactions>
      </action>
    </keybind>
    <!-- Keybindings for window switching with the arrow keys -->
    <keybind key="W-S-Right">
      <action name="DirectionalCycleWindows">
        <direction>right</direction>
      </action>
    </keybind>
    <keybind key="W-S-Left">
      <action name="DirectionalCycleWindows">
        <direction>left</direction>
      </action>
    </keybind>
    <keybind key="W-S-Up">
      <action name="DirectionalCycleWindows">
        <direction>up</direction>
      </action>
    </keybind>
    <keybind key="W-S-Down">
      <action name="DirectionalCycleWindows">
        <direction>down</direction>
      </action>
    </keybind>
    <!-- Keybindings for running applications -->
    <keybind key="W-e">
      <action name="Execute">
        <startupnotify>
          <enabled>true</enabled>
          <name>Konqueror</name>
        </startupnotify>
        <command>kfmclient openProfile filemanagement</command>
      </action>
    </keybind>
    <!-- Launch scrot when Print is pressed -->
    <keybind key="Print">
      <action name="Execute">
        <command>scrot</command>
      </action>
    </keybind>
  </keyboard>
  <mouse>
    <dragThreshold>1</dragThreshold>
    <!-- number of pixels the mouse must move before a drag begins -->
    <doubleClickTime>500</doubleClickTime>
    <!-- in milliseconds (1000 = 1 second) -->
    <screenEdgeWarpTime>400</screenEdgeWarpTime>
    <!-- Time before changing desktops when the pointer touches the edge of the
       screen while moving a window, in milliseconds (1000 = 1 second).
       Set this to 0 to disable warping -->
    <screenEdgeWarpMouse>false</screenEdgeWarpMouse>
    <!-- Set this to TRUE to move the mouse pointer across the desktop when
       switching due to hitting the edge of the screen -->
    <context name="Frame">
      <mousebind button="A-Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="A-Left" action="Click">
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="A-Left" action="Drag">
        <action name="Move"/>
      </mousebind>
      <mousebind button="A-Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="A-Right" action="Drag">
        <action name="Resize"/>
      </mousebind>
      <mousebind button="A-Middle" action="Press">
        <action name="Lower"/>
        <action name="FocusToBottom"/>
        <action name="Unfocus"/>
      </mousebind>
      <mousebind button="A-Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="A-Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="C-A-Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="C-A-Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="A-S-Up" action="Click">
        <action name="SendToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="A-S-Down" action="Click">
        <action name="SendToDesktop">
          <to>next</to>
        </action>
      </mousebind>
    </context>
    <context name="Titlebar">
      <mousebind button="Left" action="Drag">
        <action name="Move"/>
      </mousebind>
      <mousebind button="Left" action="DoubleClick">
        <action name="ToggleMaximize"/>
      </mousebind>
      <mousebind button="Up" action="Click">
        <action name="if">
          <shaded>no</shaded>
          <then>
            <action name="Shade"/>
            <action name="FocusToBottom"/>
            <action name="Unfocus"/>
            <action name="Lower"/>
          </then>
        </action>
      </mousebind>
      <mousebind button="Down" action="Click">
        <action name="if">
          <shaded>yes</shaded>
          <then>
            <action name="Unshade"/>
            <action name="Raise"/>
          </then>
        </action>
      </mousebind>
    </context>
    <context name="Titlebar Top Right Bottom Left TLCorner TRCorner BRCorner BLCorner">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Middle" action="Press">
        <action name="Lower"/>
        <action name="FocusToBottom"/>
        <action name="Unfocus"/>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="ShowMenu">
          <menu>client-menu</menu>
        </action>
      </mousebind>
    </context>
    <context name="Top">
      <mousebind button="Left" action="Drag">
        <action name="Resize">
          <edge>top</edge>
        </action>
      </mousebind>
    </context>
    <context name="Left">
      <mousebind button="Left" action="Drag">
        <action name="Resize">
          <edge>left</edge>
        </action>
      </mousebind>
    </context>
    <context name="Right">
      <mousebind button="Left" action="Drag">
        <action name="Resize">
          <edge>right</edge>
        </action>
      </mousebind>
    </context>
    <context name="Bottom">
      <mousebind button="Left" action="Drag">
        <action name="Resize">
          <edge>bottom</edge>
        </action>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="ShowMenu">
          <menu>client-menu</menu>
        </action>
      </mousebind>
    </context>
    <context name="TRCorner BRCorner TLCorner BLCorner">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Left" action="Drag">
        <action name="Resize"/>
      </mousebind>
    </context>
    <context name="Client">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="Middle" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
    </context>
    <context name="Icon">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
        <action name="ShowMenu">
          <menu>client-menu</menu>
        </action>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="ShowMenu">
          <menu>client-menu</menu>
        </action>
      </mousebind>
    </context>
    <context name="AllDesktops">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Left" action="Click">
        <action name="ToggleOmnipresent"/>
      </mousebind>
    </context>
    <context name="Shade">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="Left" action="Click">
        <action name="ToggleShade"/>
      </mousebind>
    </context>
    <context name="Iconify">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="Left" action="Click">
        <action name="Iconify"/>
      </mousebind>
    </context>
    <context name="Maximize">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Middle" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Left" action="Click">
        <action name="ToggleMaximize"/>
      </mousebind>
      <mousebind button="Middle" action="Click">
        <action name="ToggleMaximize">
          <direction>vertical</direction>
        </action>
      </mousebind>
      <mousebind button="Right" action="Click">
        <action name="ToggleMaximize">
          <direction>horizontal</direction>
        </action>
      </mousebind>
    </context>
    <context name="Close">
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
        <action name="Unshade"/>
      </mousebind>
      <mousebind button="Left" action="Click">
        <action name="Close"/>
      </mousebind>
    </context>
    <context name="Desktop">
      <mousebind button="Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="A-Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="A-Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="C-A-Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="C-A-Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="Left" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="Focus"/>
        <action name="Raise"/>
      </mousebind>
    </context>
    <context name="Root">
      <!-- Menus -->
      <mousebind button="Middle" action="Press">
        <action name="ShowMenu">
          <menu>client-list-combined-menu</menu>
        </action>
      </mousebind>
      <mousebind button="Right" action="Press">
        <action name="ShowMenu">
          <menu>root-menu</menu>
        </action>
      </mousebind>
    </context>
    <context name="MoveResize">
      <mousebind button="Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
      <mousebind button="A-Up" action="Click">
        <action name="GoToDesktop">
          <to>previous</to>
        </action>
      </mousebind>
      <mousebind button="A-Down" action="Click">
        <action name="GoToDesktop">
          <to>next</to>
        </action>
      </mousebind>
    </context>
  </mouse>
  <menu>
    <!-- You can specify more than one menu file in here and they are all loaded,
       just don't make menu ids clash or, well, it'll be kind of pointless -->
    <!-- default menu file (or custom one in $HOME/.config/openbox/) -->
    <!-- system menu files on Debian systems -->
    <file>/var/lib/openbox/debian-menu.xml</file>
    <file>menu.xml</file>
    <hideDelay>200</hideDelay>
    <!-- if a press-release lasts longer than this setting (in milliseconds), the
       menu is hidden again -->
    <middle>no</middle>
    <!-- center submenus vertically about the parent entry -->
    <submenuShowDelay>100</submenuShowDelay>
    <!-- time to delay before showing a submenu after hovering over the parent
       entry.
       if this is a negative value, then the delay is infinite and the
       submenu will not be shown until it is clicked on -->
    <submenuHideDelay>400</submenuHideDelay>
    <!-- time to delay before hiding a submenu when selecting another
       entry in parent menu
       if this is a negative value, then the delay is infinite and the
       submenu will not be hidden until a different submenu is opened -->
    <showIcons>yes</showIcons>
    <!-- controls if icons appear in the client-list-(combined-)menu -->
    <manageDesktops>yes</manageDesktops>
    <!-- show the manage desktops section in the client-list-(combined-)menu -->
  </menu>
    <!--
  # this is an example with comments through out. use these to make your
  # own rules, but without the comments of course.
  # you may use one or more of the name/class/role/title/type rules to specify
  # windows to match

  <application name="the window's _OB_APP_NAME property (see obxprop)"
              class="the window's _OB_APP_CLASS property (see obxprop)"
          groupname="the window's _OB_APP_GROUP_NAME property (see obxprop)"
         groupclass="the window's _OB_APP_GROUP_CLASS property (see obxprop)"
               role="the window's _OB_APP_ROLE property (see obxprop)"
              title="the window's _OB_APP_TITLE property (see obxprop)"
               type="the window's _OB_APP_TYPE property (see obxprob)..
                      (if unspecified, then it is 'dialog' for child windows)">
  # you may set only one of name/class/role/title/type, or you may use more
  # than one together to restrict your matches.

  # the name, class, role, and title use simple wildcard matching such as those
  # used by a shell. you can use * to match any characters and ? to match
  # any single character.

  # the type is one of: normal, dialog, splash, utility, menu, toolbar, dock,
  #    or desktop

  # when multiple rules match a window, they will all be applied, in the
  # order that they appear in this list


    # each rule element can be left out or set to 'default' to specify to not 
    # change that attribute of the window

    <decor>yes</decor>
    # enable or disable window decorations

    <shade>no</shade>
    # make the window shaded when it appears, or not

    <position force="no">
      # the position is only used if both an x and y coordinate are provided
      # (and not set to 'default')
      # when force is "yes", then the window will be placed here even if it
      # says you want it placed elsewhere.  this is to override buggy
      # applications who refuse to behave
      <x>center</x>
      # a number like 50, or 'center' to center on screen. use a negative number
      # to start from the right (or bottom for <y>), ie -50 is 50 pixels from
      # the right edge (or bottom). use 'default' to specify using value
      # provided by the application, or chosen by openbox, instead.
      <y>200</y>
      <monitor>1</monitor>
      # specifies the monitor in a xinerama setup.
      # 1 is the first head, or 'mouse' for wherever the mouse is
    </position>

    <size>
      # the size to make the window.
      <width>20</width>
      # a number like 20, or 'default' to use the size given by the application.
      # you can use fractions such as 1/2 or percentages such as 75% in which
      # case the value is relative to the size of the monitor that the window
      # appears on.
      <height>30%</height>
    </size>

    <focus>yes</focus>
    # if the window should try be given focus when it appears. if this is set
    # to yes it doesn't guarantee the window will be given focus. some
    # restrictions may apply, but Openbox will try to

    <desktop>1</desktop>
    # 1 is the first desktop, 'all' for all desktops

    <layer>normal</layer>
    # 'above', 'normal', or 'below'

    <iconic>no</iconic>
    # make the window iconified when it appears, or not

    <skip_pager>no</skip_pager>
    # asks to not be shown in pagers

    <skip_taskbar>no</skip_taskbar>
    # asks to not be shown in taskbars. window cycling actions will also
    # skip past such windows

    <fullscreen>yes</fullscreen>
    # make the window in fullscreen mode when it appears

    <maximized>true</maximized>
    # 'Horizontal', 'Vertical' or boolean (yes/no)
  </application>

  # end of the example
-->
  <applications>
    <application title="softhddevice">
      <decor>no</decor>
      <maximized>true</maximized>
      <!--<skip_pager>yes</skip_pager>-->
      <skip_taskbar>no</skip_taskbar>
    </application>
    <application title="browser">
      <decor>no</decor>
      <maximized>true</maximized>
      <!--<skip_pager>yes</skip_pager>-->
      <skip_taskbar>yes</skip_taskbar>
    </application>
    <application title="osd2Web">
      <decor>no</decor>
      <maximized>true</maximized>
      <!--<skip_pager>yes</skip_pager>-->
      <skip_taskbar>yes</skip_taskbar>
    </application>
  </applications>
</openbox_config>

#+END_SRC

** samba-install
*** tasks
#+BEGIN_SRC yaml :tangle roles/samba-install/tasks/main.yml :mkdirp yes :padline no
---
# file: roles/samba-install/tasks/main.yml

- name: install samba server
  apt:
    name: '{{ item }}'
    state: present
    install_recommends: no
  with_items:
    - samba
    - samba-common
    - samba-common-bin
    - tdb-tools

#+END_SRC
** samba-config
*** tasks
#+BEGIN_SRC yaml :tangle roles/samba-config/tasks/main.yml :mkdirp yes :padline no
---
# file: roles/samba-config/tasks/main.yml

# TODO:
# - name: divert original smbd.conf

- name: touch smb.conf.custom
  file:
    state: touch
    dest: '/etc/samba/smb.conf.custom'
  notify: [ 'Restart Samba' ]
    
- name: expand template for smb.conf
  template:
    src: 'templates/smb.conf.j2'
    dest: '/etc/samba/smb.conf'
    #validate: 'testparm -s %s'
  notify: [ 'Restart Samba' ]
#+END_SRC
*** templates
**** smb.conf
***** global settings
#+BEGIN_SRC yaml :tangle roles/samba-config/templates/smb.conf.j2 :mkdirp yes :padline no
{{ ansible_managed_file | comment }}

#======================= Global Settings =======================

[global]

## Browsing/Identification ###

# Change this to the workgroup/NT-domain name your Samba server will part of
   workgroup = {{ samba.workgroup }}

# server string is the equivalent of the NT Description field
   server string = %h server (Samba, Ubuntu)

# This will prevent nmbd to search for NetBIOS names through DNS.
   dns proxy = no

#### Debugging/Accounting ####

# This tells Samba to use a separate log file for each machine
# that connects
   log file = /var/log/samba/log.%m

# Cap the size of the individual log files (in KiB).
   max log size = 1000

# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.
   syslog = 0

# Do something sensible when Samba crashes: mail the admin a backtrace
   panic action = /usr/share/samba/panic-action %d


####### Authentication #######

# "security = user" is always a good idea. This will require a Unix account
# in this server for every user accessing the server. See
# /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/ServerType.html
# in the samba-doc package for details.
#   security = user

# You may wish to use password encryption.  See the section on
# 'encrypt passwords' in the smb.conf(5) manpage before enabling.
   encrypt passwords = true

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using.  
   passdb backend = tdbsam

   obey pam restrictions = yes

# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
   unix password sync = yes

# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .

# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
   pam password change = yes

# This option controls how unsuccessful authentication attempts are mapped 
# to anonymous connections
   map to guest = bad user

{% if samba.windows_compatible %}
# disable unix extensions and enable following symlinks
   unix extensions = no
   follow symlinks= yes
   wide links= yes
{% endif %}
#+END_SRC
***** media directories
#+BEGIN_SRC yaml :tangle roles/samba-config/templates/smb.conf.j2 :mkdirp yes
{% for name, path in media_dirs.iteritems() %}
[{{ name }}]
   path = {{ path }}
   comment = {{ name }} on %h
   guest ok = yes
   writeable = yes
   browseable = yes
   create mode = 0664
   directory mode = 0775
   force user = {{ vdr.user }}
   force group = {{ vdr.group }}
   follow symlinks = yes
   wide links = yes

{% endfor %}
#+END_SRC
***** include custom samba exports
#+BEGIN_SRC yaml :tangle roles/samba-config/templates/smb.conf.j2 :mkdirp yes
include = /etc/samba/smb.conf.custom
#+END_SRC
** STARTED autoinstall-drivers
It would be nice to be able to detect if it is suitable to install those drivers:
*** TODO sundtek for Sundtek devices (local or network connection)
Vendor-IDs:
- eb1a:5[1b2] (alte Generation)
- 2659:*      (neuere Sticks)
*** TODO dddvb-dkms if only newer DD cards are detected
*** TODO media-build-experimental (up to kernel 4.8) for "old" cards like TT S2-6400 FF
*** TODO newly merged DD drivers
from http://www.vdr-portal.de/board18-vdr-hardware/board102-dvb-karten/120817-treiber-der-cine-ctv6-ddbridge-ci-in-den-kernel-integrieren/

** autoinstall-ubuntu-drivers
The tool ubuntu-drivers is used to install the matching driver version for nvidia graphics cards, virtualbox guest additions and Intel and AMD microcode updates.
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-ubuntu-drivers/tasks/main.yml :padline no
---
# file roles/autoinstall-ubuntu-drivers/tasks/main.yml
- name: apt | install ubuntu-drivers-common
  apt:
    name: ubuntu-drivers-common
    state: present

- name: ensure /etc/yavdr exists
  file:
    path: /etc/yavdr
    state: directory
    mode: 0755

- name: let ubuntu-drivers automatically install additional drivers
  command: ubuntu-drivers --package-list /etc/yavdr/autoinstalled autoinstall
#+END_SRC
** autoinstall-satip
If a Sat>IP Server responds to a discovery request, the package vdr-plugin-satip is installed.
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-satip/tasks/main.yml :padline no
---
# file roles/autoinstall-satip/tasks/main.yml

- name: "detect SAT>IP Server(s) on the network"
  action: satip_facts

- debug:
    var: satip_devices
    verbosity: 1

- name: apt | install vdr-plugin-satip if a Sat>IP server has been detected
  apt:
    name: vdr-plugin-satip
  when: satip_devices
  notify: [ 'Restart VDR' ]
#+END_SRC

** autoinstall-targavfd
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-targavfd/tasks/main.yml :padline no
---
# file roles/autoinstall-targavfd/tasks/main.yml

- name: apt | install vdr-plugin-targavfd if connected
  apt:
    name: vdr-plugin-targavfd
  when: '"19c2:6a11" in usb'
  notify: [ 'Restart VDR' ]
#+END_SRC
** autoinstall-imonlcd
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-imonlcd/tasks/main.yml :padline no
---
# file roles/autoinstall-imonlcd/tasks/main.yml

- name: apt | install vdr-plugin-imonlcd if connected
  apt:
    name: vdr-plugin-imonlcd
  when: '"15c2:0038" in usb or "15c2:ffdc" in usb'
  notify: [ 'Restart VDR' ]
#+END_SRC
** autoinstall-libcecdaemon
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-libcecdaemon/tasks/main.yml :padline no
---
# file roles/autoinstall-libcec-daemon/tasks/main.yml

- name: apt | install libcec-daemon if connected
  apt:
    name: libcec-daemon
  when: 
    - "2548:1002" in usb
#+END_SRC
** autoinstall-pvr350
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-pvr350/tasks/main.yml :padline no
---
# file roles/autoinstall-pvr350/tasks/main.yml

- name: apt | install vdr-plugin-pvr350 if connected
  apt:
    name: vdr-plugin-pvr350
  when: '"0070:4000" in pci'
  notify: [ 'Restart VDR' ]
#+END_SRC
** autoinstall-hauppauge-pvr
#+BEGIN_SRC yaml :tangle roles/autoinstall-hauppauge-pvr/tasks/main.yml :padline no
---
# file roles/autoinstall-hauppauge-pvr/tasks/main.yml

- name: apt | install vdr-plugin-pvrinput if a haupauge pvr card is found
  apt:
    name: vdr-plugin-pvrinput
  when: '"0070:4000" in pci or "4444:0016" in pci'
  notify: [ 'Restart VDR' ]
#+END_SRC
** TODO autoinstall-dvbhddevice
Problem: woher kommt der Treiber (AFAIK noch nicht im Kernel)? Die Firmware sollte in yavdr-firmware stecken
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-dvbhddevice/tasks/main.yml :padline no
---
# file roles/autoinstall-dvbhddevice/tasks/main.yml

- name: apt | install vdr-plugin-dvbhddevice if connected
  apt:
    name: vdr-plugin-dvbhddevice
  when: '"13c2:300a" in pci or "13c2:300b" in pci'
  notify: [ 'Restart VDR' ]
#+END_SRC

** autoinstall-dvbsddevice
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-dvbsddevice/tasks/main.yml :padline no
---
# file roles/autoinstall-dvbsddevice/tasks/main.yml

- name: apt | install vdr-plugin-dvbsddevice if module is loaded
  apt:
    name: vdr-plugin-dvbsddevice
  when: '"dvb_ttpci" in modules'
  notify: [ 'Restart VDR' ]
#+END_SRC
** autoinstall-hardware-irmp
*** tasks
#+BEGIN_SRC yaml :tangle roles/autoinstall-hardware-irmp/tasks/main.yml :padline no
---
# file roles/autoinstall-hardware-irmp/tasks/main.yml

- name: apt | install yavdr-hardware-irmp if connected
  apt:
    name: yavdr-hardware-irmp
  when: '"1209:4444" in usb'
#+END_SRC

**** TODO add other device ids if necessary

** kodi
*** tasks
**** Install KODI
***** main.yml
:PROPERTIES:
:UNNUMBERED: t
:END:
#+INCLUDE: "roles/kodi/tasks/main.yml" src yaml
***** install-kodi.yml
#+INCLUDE: "roles/kodi/tasks/install-kodi.yml" src yaml
***** configure-kodi.yml
#+INCLUDE: "roles/kodi/tasks/configure-kodi.yml" src yaml
*** templates
**** kodi.service
This systemd unit for the user session starts (and stops) kodi.
#+INCLUDE: "roles/kodi/templates/kodi.service.j2" src conf

*** files
Those configuration files provide a preconfiguration for kodi which overrides the system wide configuration
**** Lircmap.xml
This file allows to map keys sent by remotes via eventlircd (which uses the name ~devinput~) to kodi key names.
#+INCLUDE:  "roles/kodi/files/userdata/Lircmap.xml" src nxml
**** keymaps
This file maps the keys defined in Lircmap.xml to actions within kodi.
***** remote.xml
#+INCLUDE: "roles/kodi/files/userdata/keymaps/remote.xml" src xml
** dvd
*** tasks
**** install libdvd-pkg, allow programs to eject optical media
:PROPERTIES:
:UNNUMBERED: t
:END:
#+INCLUDE: "roles/dvd/tasks/main.yml" src yaml
** template-test
:PROPERTIES:
:EXPORT: nil
:END:
#+BEGIN_SRC yaml :tangle roles/template-test/tasks/main.yml :padline no
---

- name: show vars
  debug: 
    var: '{{ system }}'

- name: test templates
  template:
    src: templates/test.j2
    dest: /tmp/test.txt
#+END_SRC
#+BEGIN_SRC shell :tangle roles/template-test/templates/xorg.conf_test.j2
{{ ansible_managed_file | comment }}

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    {% if system.x11.dualhead.enabled %}
    Screen      1  "Screen1" RightOf "Screen0"
    {% endif %}
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

# ignore devices with eventlircd tag 
# ENV{ID_INPUT.tags}+="eventlircd"
# must be set by an udev rule
Section "InputClass"
    Identifier "ignore eventlircd devices"
    MatchTag "eventlircd"
    Option "Ignore" "True"
EndSection



Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection


Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
{% if system.x11.display.0.default == "VGA2Scart_4_3" or system.x11.display.0.default == "VGA2Scart_16_9" %}
    HorizSync       14-17
    VertRefresh     49-61
    {% if system.x11.display.0.default == "VGA2Scart_4_3" %}
    Modeline "VGA2Scart_4_3" 13.875 720 744 808 888 576 580 585 625 -HSync -Vsync interlace
    {% elif system.x11.display.0.default == "VGA2Scart_16_9" %}
    Modeline "VGA2Scart_16_9" 19 1024 1032 1120 1216 576 581 586 625 -Hsync -Vsync interlace
    {% endif %}
{% endif %}
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "True"
EndSection


{% if system.x11.dualhead.enabled == "1" %}
Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Unknown"
{% if system.x11.display.1.default in ("VGA2Scart_4_3",  "VGA2Scart_16_9") %}
    HorizSync       14-17
    VertRefresh     49-61
    {% if system.x11.display.1.default == "VGA2Scart_4_3" %}
    Modeline "VGA2Scart_4_3" 13.875 720 744 808 888 576 580 585 625 -HSync -Vsync interlace
    {% elif system.x11.display.1.default == "VGA2Scart_16_9" %}
    Modeline "VGA2Scart_16_9" 19 1024 1032 1120 1216 576 581 586 625 -Hsync -Vsync interlace
    {% endif %}
    Option         "DPMS"
    Option         "ExactModeTimingsDVI" "True"
{% endif %}
EndSection
{% endif %}

Section "Device"
    Identifier     "Device0"
{% if system.hardware.nvidia.detected %}
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
{% endif %}
    Screen          0
    Option         "DPI" "100x100"
{% if system.hardware.nvidia.busid %}
    BusID          "PCI: {{ system.hardware.nvidia.busid }}"
{% endif %}
    Option         "NoLogo" "True"
    Option         "UseEvents" "True"
    Option         "TripleBuffer" "False"
    Option         "AddARGBGLXVisuals" "True"
    Option         "TwinView" "0"
    Option         "DynamicTwinView" "0"
    Option         "OnDemandVBlankinterrupts" "on"
    Option         "FlatPanelProperties" "Scaling = Native"
EndSection

{% if system.x11.dualhead.enabled == "1" %}
Section "Device"
    Identifier     "Device1"
    {% if system.hardware.nvidia.detected %}
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    {% endif %}
    Screen          1
    {% if system.hardware.nvidia.busid %}
    BusID          "PCI: {{ system.hardware.nvidia.busid }}"
    {% endif %}
    Option         "NoLogo" "True"
    Option         "UseEvents" "True"
    Option         "TripleBuffer" "False"
    Option         "AddARGBGLXVisuals" "True"
    Option         "TwinView" "0"
    Option         "DynamicTwinView" "0"
EndSection
{% endif %}


Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
{% if system.x11.display.0.default is defined and system.x11.display.0.default %}
        Modes      "{{ system.x11.display.0.default }}"{% for mode in system.x11.display.0.mode %}{% if mode != system.x11.display.0.default %} "{{ mode }}"{% endif %}{% endfor %}

{% elif system.hardware.nvidia.detected == 1 %}
        Modes      "nvidia-auto-select"
{% endif %}
    EndSubSection
{% if system.x11.display.0.default or system.x11.default %}
    {% if system.x11.display.0.device is definded and system.x11.display.0.device %}
    Option         "ConnectedMonitor" {{ system.x11.display.0.device }}
    {% else %}
    Option         "ConnectedMonitor" {{ system.x11.default }}
    {% endif %}
    #     Option         "ConnectedMonitor" "<?cs if:(?system.x11.display.0.device) ?><?cs call:fix_display_name(system.x11.display.0.device) ?><?cs else ?><?cs var:system.x11.default ?><?cs /if ?><?cs if:(?system.x11.dualhead.enabled && system.x11.dualhead.enabled == 1) ?>, <?cs call:fix_display_name(system.x11.display.1.device) ?><?cs /if ?>"
    #Option         "ConnectedMonitor"
    "<?cs if:(?system.x11.display.0.device) ?>
          <?cs call:fix_display_name(system.x11.display.0.device) ?>
     <?cs else ?>
          <?cs var:system.x11.default ?>
     <?cs /if ?>
     <?cs if:(?system.x11.dualhead.enabled && system.x11.dualhead.enabled == 1) ?>, <?cs call:fix_display_name(system.x11.display.1.device) ?><?cs /if ?>"
#     Option         "UseDisplayDevice" "<?cs if:(?system.x11.display.0.device) ?><?cs call:fix_display_name(system.x11.display.0.device) ?><?cs else ?><?cs var:system.x11.default ?><?cs /if ?>"
# <?cs /if ?>
# <?cs if:(?system.hardware.nvidia.0.edid && system.hardware.nvidia.0.edid == "1") ?>
#     Option         "CustomEDID" "<?cs call:fix_display_name(system.x11.display.0.device) ?>:/etc/X11/edid.0.yavdr"
# <?cs /if ?>
# <?cs if:(system.hardware.nvidia.detected == 1 && ?system.x11.display.0.device) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.0.device) ?>: <?cs var:system.x11.display.0.default ?> { ViewPortIn=<?cs var:system.x11.display.0.viewport.in.x ?>x<?cs var:system.x11.display.0.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.0.viewport.out.x ?>x<?cs var:system.x11.display.0.viewport.out.y ?>+<?cs var:system.x11.display.0.viewport.out.plusx ?>+<?cs var:system.x11.display.0.viewport.out.plusy ?> }"
# <?cs each:mode = system.x11.display.0.mode ?><?cs if:(mode != system.x11.display.0.default) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.0.device) ?>: <?cs var:mode ?> { ViewPortIn=<?cs var:system.x11.display.0.viewport.in.x ?>x<?cs var:system.x11.display.0.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.0.viewport.out.x ?>x<?cs var:system.x11.display.0.viewport.out.y ?>+<?cs var:system.x11.display.0.viewport.out.plusx ?>+<?cs var:system.x11.display.0.viewport.out.plusy ?> }"<?cs /if ?><?cs /each ?> 
{% endif %}
EndSection

{% if system.x11.dualhead.enabled == "1" %}
Section "Screen"

     Identifier     "Screen1"
     Device         "Device1"
     Monitor        "Monitor1"
     DefaultDepth    24
     SubSection     "Display"
         Depth       24
{% if system.x11.display.0.default is defined and system.x11.display.0.default %}
         Modes      "{{ system.x11.display.1.default }}"{% for mode in system.x11.display.1.mode %}{% if mode != system.x11.display.1.default %} "{{ mode }}"{% endif %}{% endfor %}

{% elif system.hardware.nvidia.detected == "1" %}
         Modes      "nvidia-auto-select"
{% endif %}
      EndSubSection

# <?cs if:(?system.x11.display.1.default && system.x11.display.1.default != "" && system.x11.display.1.default != "disabled") ?>
#     Option         "UseDisplayDevice" "<?cs call:fix_display_name(system.x11.display.1.device) ?>"
# <?cs /if ?>
# <?cs if:(?system.hardware.nvidia.1.edid && system.hardware.nvidia.1.edid == "1") ?>
#     Option         "CustomEDID" "<?cs call:fix_display_name(system.x11.display.1.device) ?>:/etc/X11/edid.1.yavdr"
# <?cs /if ?>
# <?cs if:(system.hardware.nvidia.detected == 1 && ?system.x11.display.1.device) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.1.device) ?>: <?cs var:system.x11.display.1.default ?> { ViewPortIn=<?cs var:system.x11.display.1.viewport.in.x ?>x<?cs var:system.x11.display.1.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.1.viewport.out.x ?>x<?cs var:system.x11.display.1.viewport.out.y ?>+<?cs var:system.x11.display.1.viewport.out.plusx ?>+<?cs var:system.x11.display.1.viewport.out.plusy ?> }"
# <?cs each:mode = system.x11.display.1.mode ?><?cs if:(mode != system.x11.display.1.default) ?>
#     Option          "MetaModes" "<?cs call:fix_display_name(system.x11.display.1.device) ?>: <?cs var:mode ?> { ViewPortIn=<?cs var:system.x11.display.1.viewport.in.x ?>x<?cs var:system.x11.display.1.viewport.in.y ?>, ViewPortOut=<?cs var:system.x11.display.1.viewport.out.x ?>x<?cs var:system.x11.display.1.viewport.out.y ?>+<?cs var:system.x11.display.1.viewport.out.plusx ?>+<?cs var:system.x11.display.1.viewport.out.plusy ?> }"<?cs /if ?><?cs /each ?>
# <?cs /if ?>
EndSection
{% endif %}

{% if not system.x11.use_compositing %}
Section "Extensions"
# if not open-gl OSD is needed (e.g. for vdr-sxfe):
    Option         "Composite" "Disable"
EndSection
{% endif %}
#+END_SRC
#+BEGIN_SRC yaml :tangle roles/template-test/defaults/main.yml
foo:
  - bar
  - baz
  - spam

system:
  hardware:
    nvidia:
      detected: "1"
      busid: "000:2304:234"
  x11:
    dualhead:
      enabled: "0"
    display:
      0:
        mode:
          - "1920x1080_50"
        default: "nvidia-auto"

      1:
        mode:
          - "1280x720_60"
#+END_SRC
** grub-config
*** default variables
#+BEGIN_SRC yaml :tangle roles/grub-config/defaults/main.yml :mkdirp yes :padline no
system:
  shutdown: poweroff
grub:
  timeout: 0
  boot_options: quiet nosplash
#+END_SRC
*** tasks
#+BEGIN_SRC yaml :tangle roles/grub-config/tasks/main.yml :mkdirp yes :padline no
---

- name: custom grub configuration for timeout and reboot halt
  template:
    src: templates/50_custom.j2
    dest: /etc/grub.d/50_custom
    mode: '0775'
  notify: [ 'Update GRUB' ]

# TODO: add special case if plymouth is used
- name: let the system boot quietly
  lineinfile:
      dest: /etc/default/grub
      state: present
      regexp: '^(GRUB_CMDLINE_LINUX_DEFAULT=")'
      line: '\1{{ grub.boot_options}}"'
      backrefs: yes
  notify: [ 'Update GRUB' ]
#+END_SRC
*** templates 
#+BEGIN_SRC shell :tangle roles/grub-config/templates/50_custom.j2 :mkdirp yes :padline no
#!/bin/sh
exec tail -n +3 $0

# This file is configured by the ansible configuration for yaVDR

{% if system.shutdown is defined and system.shutdown == 'reboot' %}
menuentry "PowerOff" {
    halt
}
{% endif %}

if [ "${recordfail}" = 1 ]; then
    set timeout={{ 3 if grub.timeout < 3 else grub.timeout }}
else
    set timeout={{ grub.timeout if grub.timeout is defined else 0 }}
fi
#+END_SRC
*** handlers
#+BEGIN_SRC yaml :tangle roles/grub-config/handlers/main.yml :mkdirp yes :padline no
---

- name: Update GRUB
  command: update-grub
  failed_when: ('error' in grub_register_update.stderr)
  register: grub_register_update

  # TODO: Do we need to use grub-set-default?
  # https://github.com/yavdr/yavdr-utils/blob/master/events/actions/update-grub
#+END_SRC
* Modules
This section contains custom modules for the yaVDR Playbooks. They are used to collect facts about the system and configure applications and daemons.
** hardware_facts.py
#+BEGIN_SRC python :tangle library/hardware_facts.py :shebang #!/usr/bin/env/python
# This Module collects the vendor- and device ids for USB- and PCI(e)-devices and currently loaded kernel modules.
DOCUMENTATION = '''
  ---
  module: hardware_facts
  short_description: collects facts for kernel modules, usb and pci devices
  description:
       - This Module collects the vendor- and device ids for USB- and PCI(e)-devices and
         currently loaded kernel modules.
  options:
      usb:
          required: False
          default: True
          description:
            - return a list of vendor- and device ids for usb devices in '04x:04x' notation

    pci:
        required: False
        default: True
        description:
          - return a list of vendor- and device ids for pci devices in '04x:04x' notation

    modules:
        required: False
        default: True
        description:
          - return a list of currently loaded kernel modules

    gpus:
        required: False
        default: True
        description:
          - return a list of devices of the pci gpu class (0x030000)
notes:
   - requres python-pyusb and python-kmodpy
requirements: [ ]
author: "Alexander Grothe <seahawk1986@gmx.de>"
'''

EXAMPLES = '''
- name: get information about usb and pci hardware and loaded kernel modules
  hardware_facts:
    usb: True
    pci: True
    modules: True
- debug:
    var: usb
- debug
    var: pci
- debug
    var: modules
- debug
    var: gpus
'''

import glob
import json
import os
import sys
import usb.core
from collections import namedtuple

import kmodpy
from ansible.module_utils.basic import *


PCIDevice = namedtuple("PCIDevice", 'idVendor idProduct idClass pciPath')

vendor_dict = {
    0x10de: 'nvidia',
    0x8086: 'intel',
    0x1002: 'amd',
    0x80ee: 'virtualbox',
    }

def get_pci_devices():
    for device in glob.glob('/sys/devices/pci*/*:*:*/*:*:*/'):
        try:
            with open(os.path.join(device, 'device')) as d:
                product_id = int(d.read().strip(), 16)
            with open(os.path.join(device, 'vendor')) as d:
                vendor_id = int(d.read().strip(), 16)
            with open(os.path.join(device, 'class')) as d:
                class_id = int(d.read().strip(), 16)
            yield PCIDevice(idVendor=vendor_id, idProduct=product_id, idClass=class_id, pciPath=device)
        except IOError:
            pass

def format_device_list(iterator):
    return ["{:04x}:{:04x}".format(d.idVendor, d.idProduct) for d in iterator]

def format_gpu_device_list(iterator):
    def get_entries(iterator):
        for d in iterator:
            if d.idClass == 0x030000:
                yield {"VendorName": vendor_dict.get(d.idVendor, "unknown"),
                       "VendorID": d.idVendor, "ProductID": d.idProduct}
    return [entry for entry in get_entries(iterator)]

arg_specs = {
    'usb': dict(default=True, type='bool', required=False),
    'pci': dict(default=True, type='bool', required=False),
    'modules': dict(default=True, type='bool', required=False),
    'gpus': dict(default=True, type='bool', required=False),
    }


def main():
    module = AnsibleModule(argument_spec=arg_specs, supports_check_mode=True,)
    collect_usb = module.params['usb']
    collect_pci = module.params['pci']
    collect_modules = module.params['modules']
    collect_gpus = module.params['gpus']
    if collect_usb:
        usb_devices = format_device_list(usb.core.find(find_all=True))
    else:
        usb_device = []
    if collect_pci:
        pci_devices = format_device_list(get_pci_devices())
    else:
        pci_devices = []
    if collect_modules:
        k = kmodpy.Kmod()
        modules = [m[0] for m in k.loaded()]
    else:
        modules = []
    if collect_gpus:
        gpus = format_gpu_device_list(get_pci_devices())
    else:
        gpus = []
    data = {'usb': usb_devices, 'pci': pci_devices, 'modules': modules, 'gpus': gpus}
    module.exit_json(changed=False, ansible_facts=data, msg=data)


if __name__ == '__main__':  
    main()
#+END_SRC
** satip_facts.py
#+BEGIN_SRC python :tangle library/satip_facts.py :shebang #!/usr/bin/env python2
DOCUMENTATION = '''
---
module: hardware_facts
short_description: "check if at least one SAT>IP server responds on the network"
description:
     - This script sends a multicast message and awaits responses by Sat>IP servers.
       Returns a list of detected SAT>IP servers with their name and capabilites.
'''
EXAMPLES = '''
- name: "detect SAT>IP Server on the network"
  action: satip_facts

- debug:
    var: satip_devices
'''

import json
import socket
import sys
import time
import xml.etree.ElementTree as ET
import requests
from contextlib import contextmanager
from ansible.module_utils.basic import *

SSDP_BIND = "0.0.0.0"
SSDP_ADDR = "239.255.255.250"
SSDP_PORT = 1900
# SSDP_MX = max delay for server response
# a value of 2s is recommended by the SAT>IP specification 1.2.2
SSDP_MX = 2
SSDP_ST = "urn:ses-com:device:SatIPServer:1"

ssdpRequest = "\r\n".join((
    "M-SEARCH * HTTP/1.1",
    "HOST: %s:%d" % (SSDP_ADDR, SSDP_PORT),
    "MAN: \"ssdp:discover\"",
    "MX: %d" % (SSDP_MX),
    "ST: %s" % (SSDP_ST),
    "\r\n"))

@contextmanager
def socket_manager(*args, **kwargs):
    """provide a context manager for socket"""
    sock = socket.socket(*args, **kwargs)
    sock.setblocking(False)
    sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    try:
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
    except socket.error:
        pass
    sock.settimeout(SSDP_MX + 0.5)
    sock.bind((SSDP_BIND, SSDP_PORT))
    try:
        yield sock
    finally:
        sock.close()


def parse_satip_xml(data):
    """ Parse SAT>IP XML data.
    Args:
        data (str): XML input data..
    Returns:
        dict: Parsed SAT>IP device name and frontend information.
    """
    result = {'name': '', 'frontends': {}}
    if data:
        root = ET.fromstring(data)
        name = root.find('.//*/{urn:schemas-upnp-org:device-1-0}friendlyName')
        result['name'] = name.text
        satipcap = root.find('.//*/{urn:ses-com:satip}X_SATIPCAP')
        if satipcap is None:
            raise ValueError("Invalid SAT>IP device description")
        caps = {}
        for system in satipcap.text.split(","):
            cap = system.split("-")
            if cap:
                count = int(cap[1])
                if cap[0] in caps:
                    count = count + caps[cap[0]]
                caps[cap[0]] = count
        result['frontends'] = caps
    return result


def main():
    description_urls = []
    device_list = []
    module = AnsibleModule(argument_spec={}, supports_check_mode=True,)
    with socket_manager(socket.AF_INET, socket.SOCK_DGRAM) as sock:
        # according to Sat>IP Specification 1.2.2, p. 20
        # a client should send three requests within 100 ms with a ttl of 2

        for _ in range(3):
            sock.sendto(ssdpRequest, (SSDP_ADDR, SSDP_PORT))
            time.sleep(0.03)
        try:
            response = sock.recv(1024)
            if response and "SERVER:" in response:
                for line in response.splitlines():
                    if "LOCATION" in line:
                        url = line.split()[-1].strip()
                        if url not in description_urls:
                            description_urls.append(url)
                            info = requests.get(url, timeout=2)
                            device_list.append(parse_satip_xml(info.text))
            else:
                raise ValueError('No satip server detected')
        except (socket.timeout, ValueError, ET.ParseError):
            pass

    module.exit_json(changed=False, ansible_facts={'satip_devices': device_list})

if __name__ == '__main__':
    main()
#+END_SRC
** xrandr_facts.py
- [ ] support multiple screens (-d :0.0 .. :0.n)

#+BEGIN_SRC python :tangle library/xrandr_facts.py :shebang #!/usr/bin/env python2
from __future__ import print_function
import ast
import binascii
import csv
import re
import subprocess
from collections import namedtuple

from ansible.module_utils.basic import *

DOCUMENTATION = '''
---
module: xrandr_facts
short_description: "gather facts about connected monitors and available modelines"
description:
     - This module needs a running x-server on a given display in order to successfully call xrandr.
       Returns the dictionary "xrandr", wich contains all screens with output states, connected displays,
       EDID info and their modes and a recommendation for the best fitting tv mode.
options:
    display:
        required: False
        default: ":0"
        description:
          - the DISPLAY variable to use when calling xrandr
    preferred_outpus:
        required: False
        default: ["HDMI", "DP", "DVI", "VGA", "TV": 0]
        description:
          - ranking of the preferred display connectors
    preferred_refreshrates:
        required: False
        default: ["50", "60", "75", "30", "25"]
        description:
          - ranking of the preferred display refreshrate
    preferred_resolutions:
        required: False
        default: ["7680x4320", "3840x2160", "1920x1080", "1280x720", "720x576"]
        description:
           - ranking of the preferred display resolutions
    write_edids:
        required: False
        default: True
        description:
           - write edid data to /etc/X11/edid.{connector}.bin
'''
EXAMPLES = '''
- name: "collect facts for connected displays"
  action: xserver_facts
    display: ":0"

- debug:
    var: xrandr

- debug:
    var: xorg
'''

ARG_SPECS = {
    'display': dict(default=":0", type='str', required=False),
    'preferred_outputs': dict(
        default=["HDMI", "DP", "DVI", "VGA", "TV"], type='list', required=False),
    'preferred_refreshrates': dict(
        default=[50, 60, 75, 30, 25], type='list', required=False),
    'preferred_resolutions': dict(
        default=[
            "7680x4320", "3840x2160", "1920x1080", "1280x720", "720x576"],
        type='list', required=False),
    'write_edids': dict(default=True, type='bool', required=False),
    }

SCREEN_REGEX = re.compile("^(?P<screen>Screen\s\d+:)(?:.*)")
CONNECTOR_REGEX = re.compile(
    "^(?P<connector>.*-\d+)\s(?P<connection_state>connected|disconnected)\s(?P<primary>primary)?")
MODE_REGEX = re.compile("^\s+(?P<resolution>\d{3,}x\d{3,}).*")

Mode = namedtuple('Mode', ['connection', 'resolution', 'refreshrate'])

def check_for_screen(line):
    """check line for screen information"""
    match = re.match(SCREEN_REGEX, line)
    if match:
        return match.groupdict()['screen']

def check_for_connection(line):
    """check line for connection name and state"""
    match = re.match(CONNECTOR_REGEX, line)
    connector = None
    is_connected = False
    if match:
        match = match.groupdict()
        connector = match['connector']
        is_connected = True if match['connection_state'] == 'connected' else False
    return connector, is_connected

def get_indentation(line):
    """return the number of leading whitespace characters"""
    return len(line) - len(line.lstrip())

def sort_mode(mode):
    """rate modes by several criteria"""
    connection_score = 0
    rrate_score = 0
    resolution_score = 0
    preferred_rrates = module.params['preferred_refreshrates']
    # [50, 60]
    preferred_resolutions = module.params['preferred_resolutions']
    # ["7680x4320", "3840x2160", "1920x1080", "1280x720", "720x576"]
    preferred_outputs = module.params['preferred_outputs']
    # ["HDMI", "DP", "DVI", "VGA"]
    if mode.refreshrate in preferred_rrates:
        rrate_score = len(preferred_rrates) - preferred_rrates.index(mode.refreshrate)
    if mode.resolution in preferred_resolutions:
        resolution_score = len(preferred_resolutions) - preferred_resolutions.index(mode.resolution)
    x_resolution, y_resolution = (int(n) for n in  mode.resolution.split('x'))
    connection = mode.connection.split('-')[0]
    if connection in preferred_outputs:
        connection_score = len(preferred_outputs) - preferred_outputs.index(connection)
    return (rrate_score, resolution_score, x_resolution, y_resolution, connection_score)

def parse_xrandr_verbose(iterator):
    """parse the output of xrandr --verbose using an iterator delivering single lines"""
    xorg = {}
    is_connected = False
    for line in iterator:
        if line.startswith('Screen'):
            screen = check_for_screen(line)
            xorg[screen] = {}
        elif 'connected' in line:
            connector, is_connected = check_for_connection(line)
            xorg[screen][connector] = {
                'is_connected': is_connected,
                'EDID': '',
                'modes': {},
                'preferred': '',
                'current': '',
                'auto': '',
                }
        elif is_connected and 'EDID:' in line:
            edid_str = ""
            outer_indentation = get_indentation(line)
            while True:
                line = next(iterator)
                if get_indentation(line) > outer_indentation:
                    edid_str += line.strip()
                else:
                    break
            xorg[screen][connector]['EDID'] = edid_str
        elif is_connected and "MHz" in line and not "Interlace" in line:
            match = re.match(MODE_REGEX, line)
            if match:
                match = match.groupdict()
                preferred = bool("+preferred" in line)
                current = bool("*current" in line)

                while True:
                    line = next(iterator)
                    if line.strip().startswith('v:'):                        
                        refresh_rate = ast.literal_eval(line.split()[-1][:-2])
                        rrate = int(round(refresh_rate))
                        if xorg[screen][connector]['modes'].get(match['resolution']) is None:
                            xorg[screen][connector]['modes'][match['resolution']] = []
                        if rrate not in xorg[screen][connector]['modes'][match['resolution']]:
                            xorg[screen][connector]['modes'][match['resolution']].append(rrate)
                        if preferred:
                            xorg[screen][connector]['preferred'] = "{}_{}".format(
                                match['resolution'], rrate)
                        if current:
                            xorg[screen][connector]['current'] = "{}_{}".format(
                                match['resolution'], rrate)
                        break
    return xorg

def parse_edid_data(edid):
    vendor = "Unknown"
    model = "Unknown"
    data = subprocess.check_output("parse-edid < {}".format(edid), shell=True, universal_newlines=True)
    for line in data.splitlines():
        if "VendorName" in line:
            vendor = line.strip().split('"')[1]
        if "ModelName" in line:
            model =  line.strip().split('"')[1]
    return vendor, model

def collect_nvidia_data():
    BusID_RE = re.compile((
        '(?P<domain>[0-9a-fA-F]+)'
        ':'
        '(?P<bus>[0-9a-fA-F]+)'
        ':'
        '(?P<device>[0-9a-fA-F]+)'
        '\.'
        '(?P<function>[0-9a-fA-F]+)'
     ))    
    try:
        data = subprocess.check_output(["nvidia-smi", "--query-gpu=name,pci.bus_id", "--format=csv", "-i0"],
                                universal_newlines=True)
    except subprocess.CalledProcessError:
        pass
    else:
        for row in csv.DictReader(data.splitlines(), delimiter=',', skipinitialspace=True):
            name = row['name']
            bus_id = row['pci.bus_id']
            # pci.bus_id structure as reported by nvidia-smi: "domain:bus:device.function", in hex.
            match = BusID_RE.search(bus_id)
            if match:
                domain, bus, device, function = (int(n, 16) for n in match.groups())
                bus_id = "PCI:{:d}@{:d}:{:d}:{:d}".format(bus, domain, device, function)
                return name, bus_id
    raise ValueError


def output_data(data, write_edids=True):
    if data:
        modes = []
        for _, screen_data in data.items():
            for connector, connection_data in screen_data.items():
                if connection_data.get('EDID') and write_edids:
                    with open('/etc/X11/edid.{}.bin'.format(connector), 'wb') as edid:
                        edid.write(binascii.a2b_hex(connection_data['EDID']))
                for resolution, refreshrates in connection_data['modes'].items():
                    for refreshrate in refreshrates:
                        modes.append(Mode(connector, resolution, refreshrate))
        if modes:
            result = {}
            try:
                gpu_name, bus_id = collect_nvidia_data()
            except ValueError:
                gpu_name = None
                bus_id = None

            def create_entry(my_dict, name, connector, resolution, refreshrate, vendor, model):
                my_dict[name] = {
                    'connector': connector,
                    'resolution': resolution,
                    'refreshrate': refreshrate,
                    'edid': '/etc/X11/edid.{}.bin'.format(connector),
                    'mode': "{}_{}".format(resolution, refreshrate),
                    'vendor': vendor,
                    'model': model,
                }
                if gpu_name and bus_id:
                    result[name]['gpu_name'] = gpu_name
                    result[name]['bus_id'] = bus_id

            connector_0, resolution_0, refreshrate_0 = max(modes, key=sort_mode)[:3]
            vendor_0, model_0 = parse_edid_data('/etc/X11/edid.{}.bin'.format(connector_0))
            create_entry(result, 'primary', connector_0, resolution_0, refreshrate_0, vendor_0, model_0)

            # check if additional monitors exist
            other_modes = [mode for mode in modes if mode[0] != connector_0]
            if other_modes:
                connector_1, resolution_1, refreshrate_1 = max(other_modes, key=sort_mode)[:3]
                vendor_1, model_1 = parse_edid_data('/etc/X11/edid.{}.bin'.format(connector_1))
                create_entry(result, 'secondary', connector_1, resolution_1, refreshrate_1, vendor_1, model_1)

    #print(json.dumps(data, sort_keys=True, indent=4))
    module.exit_json(changed=True if write_edids else False, ansible_facts={'xrandr': data, 'xorg': result})

if __name__ == '__main__':
    module = AnsibleModule(argument_spec=ARG_SPECS, supports_check_mode=False,)
    try:
        d = subprocess.check_output(['xrandr', '-d', module.params['display'], '--verbose'], universal_newlines=True).splitlines()
    except subprocess.CalledProcessError:
        xorg_data = {}
    else:
        xorg_data = parse_xrandr_verbose(iter(d))
    output_data(xorg_data, module.params['write_edids'])
#+END_SRC
* Handlers
#+BEGIN_SRC yaml :tangle handlers/main.yml :mkdirp yes
- name: Restart Samba
  systemd:
    name: smbd.service
    state: restarted
    enabled: yes
    #masked: no
  register: samba_reload

- name: Restart NFS Kernel Server
  systemd:
    name: nfs-server.service
    state: restarted
    enabled: yes
    #masked: no
  register: nfs_reload

- name: Restart VDR
  systemd:
    name: vdr.service
    state: restarted
    enabled: yes
  register: vdr_restart

- name: Stop VDR
  systemd:
    name: vdr.service
    state: stopped
    enabled: yes
  register: vdr_stop

- name: Start VDR
  systemd:
    name: vdr.service
    state: started
    enabled: yes
  register: vdr_start

- name: Stop xlogin
  systemd:
    name: xlogin@vdr.service
    state: stopped
    enabled: yes
  register: xlogin_stop

- name: Stop x
  systemd:
    name: x@vt7.service
    state: stopped
  register: x_stop
#+END_SRC