540 lines
17 KiB
Nix
540 lines
17 KiB
Nix
{ config, pkgs, pkgs_i686, ... }:
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with pkgs.lib;
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let
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kernelPackages = config.boot.kernelPackages;
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# Abbreviations.
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cfg = config.services.xserver;
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xorg = pkgs.xorg;
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# Map video driver names to driver packages.
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knownVideoDrivers = {
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ati_unfree = { modules = [ kernelPackages.ati_drivers_x11 ]; driverName = "fglrx"; };
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nouveau = { modules = [ pkgs.xf86_video_nouveau ]; };
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nvidia = { modules = [ kernelPackages.nvidia_x11 ]; };
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nvidiaLegacy96 = { modules = [ kernelPackages.nvidia_x11_legacy96 ]; driverName = "nvidia"; };
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nvidiaLegacy173 = { modules = [ kernelPackages.nvidia_x11_legacy173 ]; driverName = "nvidia"; };
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unichrome = { modules = [ pkgs.xorgVideoUnichrome ]; };
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virtualbox = { modules = [ kernelPackages.virtualboxGuestAdditions ]; driverName = "vboxvideo"; };
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};
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driverNames =
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optional (cfg.videoDriver != null) cfg.videoDriver ++ cfg.videoDrivers;
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drivers = flip map driverNames
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(name: { inherit name; driverName = name; } //
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attrByPath [name] (if (hasAttr ("xf86video" + name) xorg) then { modules = [(getAttr ("xf86video" + name) xorg) ]; } else throw "unknown video driver `${name}'") knownVideoDrivers);
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fontsForXServer =
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config.fonts.fonts ++
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# We don't want these fonts in fonts.conf, because then modern,
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# fontconfig-based applications will get horrible bitmapped
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# Helvetica fonts. It's better to get a substitution (like Nimbus
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# Sans) than that horror. But we do need the Adobe fonts for some
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# old non-fontconfig applications. (Possibly this could be done
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# better using a fontconfig rule.)
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[ pkgs.xorg.fontadobe100dpi
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pkgs.xorg.fontadobe75dpi
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];
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configFile = pkgs.stdenv.mkDerivation {
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name = "xserver.conf";
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xfs = optionalString (cfg.useXFS != false)
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''FontPath "${toString cfg.useXFS}"'';
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inherit (cfg) config;
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buildCommand =
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''
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echo 'Section "Files"' >> $out
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echo $xfs >> $out
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for i in ${toString fontsForXServer}; do
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if test "''${i:0:''${#NIX_STORE}}" == "$NIX_STORE"; then
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for j in $(find $i -name fonts.dir); do
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echo " FontPath \"$(dirname $j)\"" >> $out
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done
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fi
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done
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for i in $(find ${toString cfg.modules} -type d); do
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if test $(echo $i/*.so* | wc -w) -ne 0; then
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echo " ModulePath \"$i\"" >> $out
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fi
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done
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echo 'EndSection' >> $out
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echo "$config" >> $out
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''; # */
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};
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in
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{
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imports =
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[ ./display-managers/default.nix
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./window-managers/default.nix
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./desktop-managers/default.nix
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];
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###### interface
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options = {
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services.xserver = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable the X server.
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'';
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};
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autorun = mkOption {
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default = true;
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description = ''
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Whether to start the X server automatically.
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'';
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};
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exportConfiguration = mkOption {
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default = false;
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description = ''
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Whether to symlink the X server configuration under
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<filename>/etc/X11/xorg.conf</filename>.
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'';
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};
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enableTCP = mkOption {
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default = false;
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description = ''
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Whether to allow the X server to accept TCP connections.
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'';
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};
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modules = mkOption {
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default = [];
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example = [ pkgs.xf86_input_wacom ];
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description = "Packages to be added to the module search path of the X server.";
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};
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resolutions = mkOption {
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default = [];
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example = [ { x = 1600; y = 1200; } { x = 1024; y = 786; } ];
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description = ''
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The screen resolutions for the X server. The first element
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is the default resolution. If this list is empty, the X
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server will automatically configure the resolution.
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'';
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};
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videoDriver = mkOption {
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default = null;
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example = "i810";
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description = ''
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The name of the video driver for your graphics card. This
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option is obsolete; please set the
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<option>videoDrivers</option> instead.
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'';
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};
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videoDrivers = mkOption {
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# !!! We'd like "nv" here, but it segfaults the X server. Idem for
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# "vmware".
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default = [ "ati" "cirrus" "intel" "vesa" ];
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example = [ "vesa" ];
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description = ''
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The names of the video drivers that the X server should
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support. The X server will try all of the drivers listed
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here until it finds one that supports your video card.
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'';
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};
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driSupport = mkOption {
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default = true;
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description = ''
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Whether to enable accelerated OpenGL rendering through the
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Direct Rendering Interface (DRI).
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'';
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};
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driSupport32Bit = mkOption {
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default = false;
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description = ''
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On 64-bit systems, whether to support Direct Rendering for
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32-bit applications (such as Wine). This is currently only
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supported for the <literal>nvidia</literal> driver.
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'';
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};
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startOpenSSHAgent = mkOption {
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default = true;
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description = ''
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Whether to start the OpenSSH agent when you log in. The OpenSSH agent
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remembers private keys for you so that you don't have to type in
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passphrases every time you make an SSH connection. Use
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<command>ssh-add</command> to add a key to the agent.
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'';
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};
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startGnuPGAgent = mkOption {
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default = false;
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description = ''
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Whether to start the GnuPG agent when you log in. The GnuPG agent
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remembers private keys for you so that you don't have to type in
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passphrases every time you make an SSH connection or sign/encrypt
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data. Use <command>ssh-add</command> to add a key to the agent.
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'';
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};
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layout = mkOption {
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default = "us";
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description = ''
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Keyboard layout.
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'';
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};
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xkbModel = mkOption {
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default = "pc104";
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example = "presario";
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description = ''
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Keyboard model.
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'';
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};
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xkbOptions = mkOption {
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default = "terminate:ctrl_alt_bksp";
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example = "grp:caps_toggle, grp_led:scroll";
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description = ''
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X keyboard options; layout switching goes here.
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'';
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};
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xkbVariant = mkOption {
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default = "";
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example = "colemak";
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description = ''
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X keyboard variant.
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'';
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};
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config = mkOption {
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description = ''
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The contents of the configuration file of the X server
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(<filename>xorg.conf</filename>).
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'';
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};
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deviceSection = mkOption {
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default = "";
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example = "VideoRAM 131072";
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description = "Contents of the first Device section of the X server configuration file.";
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};
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screenSection = mkOption {
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default = "";
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example = ''
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Option "RandRRotation" "on"
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'';
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description = "Contents of the first Screen section of the X server configuration file.";
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};
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monitorSection = mkOption {
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default = "";
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example = "HorizSync 28-49";
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description = "Contents of the first Monitor section of the X server configuration file.";
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};
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moduleSection = mkOption {
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default = "";
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example =
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''
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SubSection "extmod"
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EndSubsection
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'';
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description = "Contents of the Module section of the X server configuration file.";
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};
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serverLayoutSection = mkOption {
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default = "";
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example =
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''
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Option "AIGLX" "true"
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'';
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description = "Contents of the ServerLayout section of the X server configuration file.";
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};
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extraDisplaySettings = mkOption {
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default = "";
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example = "Virtual 2048 2048";
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description = "Lines to be added to every Display subsection of the Screen section.";
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};
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defaultDepth = mkOption {
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default = 0;
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example = 8;
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description = "Default colour depth.";
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};
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useXFS = mkOption {
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default = false;
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example = "unix/:7100";
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description = "Determines how to connect to the X Font Server.";
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};
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tty = mkOption {
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default = 7;
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example = 9;
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description = "Virtual console for the X server.";
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};
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display = mkOption {
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default = 0;
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example = 1;
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description = "Display number for the X server.";
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};
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virtualScreen = mkOption {
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default = null;
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example = { x = 2048; y = 2048; };
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description = ''
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Virtual screen size for Xrandr.
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'';
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};
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};
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environment.x11Packages = mkOption {
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default = [];
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type = types.list types.package;
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description = ''
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List of packages added to the system when the X server is
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activated (<option>services.xserver.enable</option>).
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enable
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(mkAssert (!(cfg.startOpenSSHAgent && cfg.startGnuPGAgent))
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''
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The OpenSSH agent and GnuPG agent cannot be started both.
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Choose between `startOpenSSHAgent' and `startGnuPGAgent'.
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''
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{
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boot.extraModulePackages =
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optional (elem "nvidia" driverNames) kernelPackages.nvidia_x11 ++
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optional (elem "nvidiaLegacy96" driverNames) kernelPackages.nvidia_x11_legacy96 ++
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optional (elem "nvidiaLegacy173" driverNames) kernelPackages.nvidia_x11_legacy173 ++
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optional (elem "virtualbox" driverNames) kernelPackages.virtualboxGuestAdditions ++
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optional (elem "ati_unfree" driverNames) kernelPackages.ati_drivers_x11;
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environment.etc = optionals cfg.exportConfiguration
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[ { source = "${configFile}";
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target = "X11/xorg.conf";
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}
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# -xkbdir command line option does not seems to be passed to xkbcomp.
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{ source = "${pkgs.xkeyboard_config}/etc/X11/xkb";
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target = "X11/xkb";
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}
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];
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environment.x11Packages =
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[ xorg.xorgserver
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xorg.xrandr
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xorg.xrdb
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xorg.setxkbmap
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xorg.iceauth # required for KDE applications (it's called by dcopserver)
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xorg.xlsclients
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xorg.xset
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xorg.xsetroot
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xorg.xprop
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pkgs.xterm
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]
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++ optional (elem "nvidia" driverNames) kernelPackages.nvidia_x11
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++ optional (elem "nvidiaLegacy96" driverNames) kernelPackages.nvidia_x11_legacy96
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++ optional (elem "nvidiaLegacy173" driverNames) kernelPackages.nvidia_x11_legacy173
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++ optional (elem "virtualbox" driverNames) xorg.xrefresh
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++ optional (elem "ati_unfree" driverNames) kernelPackages.ati_drivers_x11;
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environment.systemPackages = config.environment.x11Packages;
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environment.pathsToLink =
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[ "/etc/xdg" "/share/xdg" "/share/applications" "/share/icons" "/share/pixmaps" ];
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jobs."xserver-start-check" =
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{ startOn = if cfg.autorun then "filesystem and stopped udevtrigger" else "";
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stopOn = "";
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task = true;
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script = "grep -qv noX11 /proc/cmdline && start xserver || true";
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};
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jobs.xserver =
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{ restartIfChanged = false;
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environment =
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{ FONTCONFIG_FILE = "/etc/fonts/fonts.conf"; # !!! cleanup
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XKB_BINDIR = "${xorg.xkbcomp}/bin"; # Needed for the Xkb extension.
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TZ = config.time.timeZone;
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} # !!! Depends on the driver selected at runtime.
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// optionalAttrs (!elem "nvidia" driverNames) {
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XORG_DRI_DRIVER_PATH = "${pkgs.mesa}/lib/dri";
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} // optionalAttrs (elem "nvidia" driverNames) {
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LD_LIBRARY_PATH = "${xorg.libX11}/lib:${xorg.libXext}/lib:${kernelPackages.nvidia_x11}/lib";
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} // optionalAttrs (elem "nvidiaLegacy96" driverNames) {
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LD_LIBRARY_PATH = "${xorg.libX11}/lib:${xorg.libXext}/lib:${kernelPackages.nvidia_x11_legacy96}/lib";
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} // optionalAttrs (elem "nvidiaLegacy173" driverNames) {
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LD_LIBRARY_PATH = "${xorg.libX11}/lib:${xorg.libXext}/lib:${kernelPackages.nvidia_x11_legacy173}/lib";
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} // optionalAttrs (elem "ati_unfree" driverNames) {
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LD_LIBRARY_PATH = "${xorg.libX11}/lib:${xorg.libXext}/lib:${kernelPackages.ati_drivers_x11}/lib:${kernelPackages.ati_drivers_x11}/X11R6/lib64/modules/linux";
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XORG_DRI_DRIVER_PATH = "${kernelPackages.ati_drivers_x11}/lib/dri"; # is ignored because ati drivers ship their own unpatched libglx.so !
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} // cfg.displayManager.job.environment;
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preStart =
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''
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rm -f /var/run/opengl-driver
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rm -f /var/run/opengl-driver-32
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${# !!! The OpenGL driver depends on what's detected at runtime.
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if elem "nvidia" driverNames then
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''
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ln -sf ${kernelPackages.nvidia_x11} /var/run/opengl-driver
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${optionalString (pkgs.stdenv.system == "x86_64-linux" && cfg.driSupport32Bit)
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"ln -sf ${pkgs_i686.linuxPackages.nvidia_x11.override { libsOnly = true; kernel = null; } } /var/run/opengl-driver-32"}
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''
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else if elem "nvidiaLegacy96" driverNames then
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"ln -sf ${kernelPackages.nvidia_x11_legacy96} /var/run/opengl-driver"
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else if elem "nvidiaLegacy173" driverNames then
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"ln -sf ${kernelPackages.nvidia_x11_legacy173} /var/run/opengl-driver"
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else if cfg.driSupport then
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"ln -sf ${pkgs.mesa} /var/run/opengl-driver"
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else ""
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}
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${cfg.displayManager.job.preStart}
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rm -f /tmp/.X0-lock
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'';
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script = "${cfg.displayManager.job.execCmd}";
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};
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services.xserver.displayManager.xserverArgs =
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[ "-ac"
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"-logverbose"
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"-verbose"
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"-terminate"
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"-logfile" "/var/log/X.${toString cfg.display}.log"
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"-config ${configFile}"
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":${toString cfg.display}" "vt${toString cfg.tty}"
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"-xkbdir" "${pkgs.xkeyboard_config}/etc/X11/xkb"
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] ++ optional (!cfg.enableTCP) "-nolisten tcp";
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services.xserver.modules =
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concatLists (catAttrs "modules" drivers) ++
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[ xorg.xorgserver
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xorg.xf86inputevdev
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];
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services.xserver.config =
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''
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Section "ServerFlags"
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Option "AllowMouseOpenFail" "on"
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EndSection
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Section "Module"
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${cfg.moduleSection}
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EndSection
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Section "Monitor"
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Identifier "Monitor[0]"
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${cfg.monitorSection}
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EndSection
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Section "InputClass"
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Identifier "Keyboard catchall"
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MatchIsKeyboard "on"
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Option "XkbRules" "base"
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Option "XkbModel" "${cfg.xkbModel}"
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Option "XkbLayout" "${cfg.layout}"
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Option "XkbOptions" "${cfg.xkbOptions}"
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Option "XkbVariant" "${cfg.xkbVariant}"
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EndSection
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Section "ServerLayout"
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Identifier "Layout[all]"
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${cfg.serverLayoutSection}
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# Reference the Screen sections for each driver. This will
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# cause the X server to try each in turn.
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${flip concatMapStrings drivers (d: ''
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Screen "Screen-${d.name}[0]"
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'')}
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EndSection
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# For each supported driver, add a "Device" and "Screen"
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# section.
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${flip concatMapStrings drivers (driver: ''
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Section "Device"
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Identifier "Device-${driver.name}[0]"
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Driver "${driver.driverName}"
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${cfg.deviceSection}
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EndSection
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Section "Screen"
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Identifier "Screen-${driver.name}[0]"
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Device "Device-${driver.name}[0]"
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${optionalString (cfg.monitorSection != "") ''
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Monitor "Monitor[0]"
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''}
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${cfg.screenSection}
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${optionalString (cfg.defaultDepth != 0) ''
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DefaultDepth ${toString cfg.defaultDepth}
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''}
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${optionalString (driver.name == "nvidia") ''
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Option "RandRRotation" "on"
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''}
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${optionalString
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(driver.name != "virtualbox" &&
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(cfg.resolutions != [] ||
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cfg.extraDisplaySettings != "" ||
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cfg.virtualScreen != null))
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(let
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f = depth:
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''
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SubSection "Display"
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Depth ${toString depth}
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${optionalString (cfg.resolutions != [])
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"Modes ${concatMapStrings (res: ''"${toString res.x}x${toString res.y}"'') cfg.resolutions}"}
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${cfg.extraDisplaySettings}
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${optionalString (cfg.virtualScreen != null)
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"Virtual ${toString cfg.virtualScreen.x} ${toString cfg.virtualScreen.y}"}
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EndSubSection
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'';
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in concatMapStrings f [8 16 24]
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)}
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EndSection
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'')}
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'';
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});
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}
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