632 lines
18 KiB
Nix
632 lines
18 KiB
Nix
{ config, lib, pkgs, pkgs_i686, ... }:
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with 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. FIXME: move into card-specific modules.
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knownVideoDrivers = {
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virtualbox = { modules = [ kernelPackages.virtualboxGuestAdditions ]; driverName = "vboxvideo"; };
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ati = { modules = with pkgs.xorg; [ xf86videoati glamoregl ]; };
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intel = { modules = with pkgs.xorg; [ xf86videointel glamoregl ]; };
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};
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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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# Just enumerate all heads without discarding XRandR output information.
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xrandrHeads = let
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mkHead = num: output: {
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name = "multihead${toString num}";
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inherit output;
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};
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in imap mkHead cfg.xrandrHeads;
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xrandrDeviceSection = let
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monitors = flip map xrandrHeads (h: ''
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Option "monitor-${h.output}" "${h.name}"
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'');
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# First option is indented through the space in the config but any
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# subsequent options aren't so we need to apply indentation to
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# them here
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monitorsIndented = if length monitors > 1
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then singleton (head monitors) ++ map (m: " " + m) (tail monitors)
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else monitors;
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in concatStrings monitorsIndented;
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# Here we chain every monitor from the left to right, so we have:
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# m4 right of m3 right of m2 right of m1 .----.----.----.----.
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# Which will end up in reverse ----------> | m1 | m2 | m3 | m4 |
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# `----^----^----^----'
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xrandrMonitorSections = let
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mkMonitor = previous: current: singleton {
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inherit (current) name;
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value = ''
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Section "Monitor"
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Identifier "${current.name}"
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${optionalString (previous != []) ''
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Option "RightOf" "${(head previous).name}"
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''}
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EndSection
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'';
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} ++ previous;
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monitors = reverseList (foldl mkMonitor [] xrandrHeads);
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in concatMapStrings (getAttr "value") monitors;
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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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type = types.bool;
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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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type = types.bool;
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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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type = types.bool;
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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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type = types.bool;
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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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inputClassSections = mkOption {
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type = types.listOf types.lines;
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default = [];
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example = literalExample ''
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[ '''
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Identifier "Trackpoint Wheel Emulation"
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MatchProduct "ThinkPad USB Keyboard with TrackPoint"
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Option "EmulateWheel" "true"
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Option "EmulateWheelButton" "2"
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Option "Emulate3Buttons" "false"
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'''
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]
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'';
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description = "Content of additional InputClass sections of the X server configuration file.";
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};
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modules = mkOption {
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type = types.listOf types.path;
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default = [];
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example = literalExample "[ 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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type = types.listOf types.attrs;
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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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videoDrivers = mkOption {
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type = types.listOf types.str;
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# !!! We'd like "nv" here, but it segfaults the X server.
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default = [ "ati" "cirrus" "intel" "vesa" "vmware" "modesetting" ];
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example = [ "vesa" ];
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description = ''
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The names of the video drivers the configuration
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supports. They will be tried in order until one that
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supports your card is found.
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'';
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};
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videoDriver = mkOption {
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type = types.nullOr types.str;
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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>services.xserver.videoDrivers</option> instead.
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'';
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};
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drivers = mkOption {
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type = types.listOf types.attrs;
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internal = true;
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description = ''
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A list of attribute sets specifying drivers to be loaded by
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the X11 server.
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'';
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};
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startDbusSession = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether to start a new DBus session when you log in with dbus-launch.
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'';
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};
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layout = mkOption {
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type = types.str;
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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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type = types.str;
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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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type = types.str;
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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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type = types.str;
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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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xkbDir = mkOption {
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type = types.path;
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description = ''
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Path used for -xkbdir xserver parameter.
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'';
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};
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config = mkOption {
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type = types.lines;
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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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type = types.lines;
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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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type = types.lines;
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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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type = types.lines;
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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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xrandrHeads = mkOption {
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default = [];
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example = [ "HDMI-0" "DVI-0" ];
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type = with types; listOf string;
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description = ''
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Simple multiple monitor configuration, just specify a list of XRandR
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outputs which will be mapped from left to right in the order of the
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list.
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Be careful using this option with multiple graphic adapters or with
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drivers that have poor support for XRandR, unexpected things might
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happen with those.
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'';
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};
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serverFlagsSection = mkOption {
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default = "";
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example =
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''
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Option "BlankTime" "0"
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Option "StandbyTime" "0"
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Option "SuspendTime" "0"
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Option "OffTime" "0"
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'';
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description = "Contents of the ServerFlags section of the X server configuration file.";
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};
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moduleSection = mkOption {
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type = types.lines;
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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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type = types.lines;
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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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type = types.lines;
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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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type = types.int;
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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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# FIXME: what's the type of this option?
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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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type = types.nullOr types.int;
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default = 7;
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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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type = types.nullOr types.int;
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default = 0;
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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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type = types.nullOr types.attrs;
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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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useGlamor = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to use the Glamor module for 2D acceleration,
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if possible.
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'';
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};
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enableCtrlAltBackspace = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable the DontZap option, which binds Ctrl+Alt+Backspace
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to forcefully kill X. This can lead to data loss and is disabled
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by default.
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'';
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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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hardware.opengl.enable = mkDefault true;
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services.xserver.videoDrivers = mkIf (cfg.videoDriver != null) [ cfg.videoDriver ];
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# FIXME: somehow check for unknown driver names.
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services.xserver.drivers = flip concatMap cfg.videoDrivers (name:
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let driver =
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attrByPath [name]
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(if xorg ? ${"xf86video" + name}
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then { modules = [xorg.${"xf86video" + name}]; }
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else null)
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knownVideoDrivers;
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in optional (driver != null) ({ inherit name; driverName = name; } // driver));
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assertions =
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[ { assertion = config.security.polkit.enable;
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message = "X11 requires Polkit to be enabled (‘security.polkit.enable = true’).";
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}
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];
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environment.etc =
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(optionals cfg.exportConfiguration
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[ { source = "${configFile}";
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target = "X11/xorg.conf";
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}
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# -xkbdir command line option does not seems to be passed to xkbcomp.
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{ source = "${cfg.xkbDir}";
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target = "X11/xkb";
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}
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]);
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environment.systemPackages =
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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.xinput
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xorg.xprop
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pkgs.xterm
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pkgs.xdg_utils
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]
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++ optional (elem "virtualbox" cfg.videoDrivers) xorg.xrefresh;
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environment.pathsToLink =
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[ "/etc/xdg" "/share/xdg" "/share/applications" "/share/icons" "/share/pixmaps" ];
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# The default max inotify watches is 8192.
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# Nowadays most apps require a good number of inotify watches,
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# the value below is used by default on several other distros.
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boot.kernel.sysctl."fs.inotify.max_user_watches" = mkDefault 524288;
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systemd.defaultUnit = mkIf cfg.autorun "graphical.target";
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systemd.services.display-manager =
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{ description = "X11 Server";
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after = [ "systemd-udev-settle.service" "local-fs.target" "acpid.service" "systemd-logind.service" ];
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restartIfChanged = false;
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environment =
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{
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XKB_BINDIR = "${xorg.xkbcomp}/bin"; # Needed for the Xkb extension.
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XORG_DRI_DRIVER_PATH = "/run/opengl-driver/lib/dri"; # !!! Depends on the driver selected at runtime.
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LD_LIBRARY_PATH = concatStringsSep ":" (
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[ "${xorg.libX11}/lib" "${xorg.libXext}/lib" ]
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++ concatLists (catAttrs "libPath" cfg.drivers));
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} // cfg.displayManager.job.environment;
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preStart =
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''
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${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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serviceConfig = {
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Restart = "always";
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RestartSec = "200ms";
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};
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};
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services.xserver.displayManager.xserverArgs =
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[ "-ac"
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"-terminate"
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"-config ${configFile}"
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"-xkbdir" "${cfg.xkbDir}"
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] ++ optional (cfg.display != null) ":${toString cfg.display}"
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++ optional (cfg.tty != null) "vt${toString cfg.tty}"
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++ optionals (cfg.display != null) [ "-logfile" "/var/log/X.${toString cfg.display}.log" ]
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++ optional (!cfg.enableTCP) "-nolisten tcp";
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services.xserver.modules =
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concatLists (catAttrs "modules" cfg.drivers) ++
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[ xorg.xorgserver
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xorg.xf86inputevdev
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];
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services.xserver.xkbDir = mkDefault "${pkgs.xkeyboard_config}/etc/X11/xkb";
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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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Option "DontZap" "${if cfg.enableCtrlAltBackspace then "off" else "on"}"
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${cfg.serverFlagsSection}
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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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# Additional "InputClass" sections
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${flip concatMapStrings cfg.inputClassSections (inputClassSection: ''
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Section "InputClass"
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${inputClassSection}
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EndSection
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'')}
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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 cfg.drivers (d: ''
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Screen "Screen-${d.name}[0]"
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'')}
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EndSection
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${if cfg.useGlamor then ''
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Section "Module"
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Load "dri2"
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Load "glamoregl"
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EndSection
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'' else ""}
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# For each supported driver, add a "Device" and "Screen"
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# section.
|
||
${flip concatMapStrings cfg.drivers (driver: ''
|
||
|
||
Section "Device"
|
||
Identifier "Device-${driver.name}[0]"
|
||
Driver "${driver.driverName or driver.name}"
|
||
${if cfg.useGlamor then ''Option "AccelMethod" "glamor"'' else ""}
|
||
${cfg.deviceSection}
|
||
${xrandrDeviceSection}
|
||
EndSection
|
||
|
||
Section "Screen"
|
||
Identifier "Screen-${driver.name}[0]"
|
||
Device "Device-${driver.name}[0]"
|
||
${optionalString (cfg.monitorSection != "") ''
|
||
Monitor "Monitor[0]"
|
||
''}
|
||
|
||
${cfg.screenSection}
|
||
|
||
${optionalString (cfg.defaultDepth != 0) ''
|
||
DefaultDepth ${toString cfg.defaultDepth}
|
||
''}
|
||
|
||
${optionalString
|
||
(driver.name != "virtualbox" &&
|
||
(cfg.resolutions != [] ||
|
||
cfg.extraDisplaySettings != "" ||
|
||
cfg.virtualScreen != null))
|
||
(let
|
||
f = depth:
|
||
''
|
||
SubSection "Display"
|
||
Depth ${toString depth}
|
||
${optionalString (cfg.resolutions != [])
|
||
"Modes ${concatMapStrings (res: ''"${toString res.x}x${toString res.y}"'') cfg.resolutions}"}
|
||
${cfg.extraDisplaySettings}
|
||
${optionalString (cfg.virtualScreen != null)
|
||
"Virtual ${toString cfg.virtualScreen.x} ${toString cfg.virtualScreen.y}"}
|
||
EndSubSection
|
||
'';
|
||
in concatMapStrings f [8 16 24]
|
||
)}
|
||
|
||
EndSection
|
||
'')}
|
||
|
||
${xrandrMonitorSections}
|
||
'';
|
||
|
||
};
|
||
|
||
}
|