9dca737d62
When you have a setup consisting of multiple monitors, the default is
that the first monitor detected by xrandr is set to the primary monitor.
However this may not be the monitor you need to be set as primary. In
fact this monitor set to primary may in fact be disconnected.
This has happened for the original submitter of the pull request and it
affected these programs:
* XMonad: Gets confused with Super + {w,e,r}
* SDDM: Puts the login screen on the wrong monitor, and does not
currently duplicate the login screen on all monitors
* XMobar: Puts the XMobar on the wrong monitor, as it only puts the
taskbar on the primary monitor
These changes should fix that not only by setting a primary monitor in
xrandrHeads but also make it possible to make a different monitor the
primary one.
The changes are also backwards-compatible.
788 lines
24 KiB
Nix
788 lines
24 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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# modesetting does not have a xf86videomodesetting package as it is included in xorgserver
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modesetting = {};
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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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xrandrOptions = {
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output = mkOption {
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type = types.str;
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example = "DVI-0";
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description = ''
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The output name of the monitor, as shown by <citerefentry>
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<refentrytitle>xrandr</refentrytitle>
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<manvolnum>1</manvolnum>
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</citerefentry> invoked without arguments.
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'';
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};
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primary = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether this head is treated as the primary monitor,
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'';
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};
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monitorConfig = mkOption {
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type = types.lines;
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default = "";
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example = ''
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DisplaySize 408 306
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Option "DPMS" "false"
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'';
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description = ''
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Extra lines to append to the <literal>Monitor</literal> section
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verbatim.
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'';
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};
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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: config: {
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name = "multihead${toString num}";
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inherit config;
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};
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in imap mkHead cfg.xrandrHeads;
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xrandrDeviceSection = let
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monitors = flip map xrandrHeads (h: ''
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Option "monitor-${h.config.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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${optionalString (current.config.primary) ''
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Option "Primary" "true"
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''}
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${optionalString (previous != []) ''
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Option "RightOf" "${(head previous).name}"
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''}
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${current.config.monitorConfig}
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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.runCommand "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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}
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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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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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autoRepeatDelay = mkOption {
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type = types.nullOr types.int;
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default = null;
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description = ''
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Sets the autorepeat delay (length of time in milliseconds that a key must be depressed before autorepeat starts).
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'';
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};
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autoRepeatInterval = mkOption {
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type = types.nullOr types.int;
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default = null;
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description = ''
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Sets the autorepeat interval (length of time in milliseconds that should elapse between autorepeat-generated keystrokes).
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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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dpi = mkOption {
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type = types.nullOr types.int;
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default = null;
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description = "DPI resolution to use for X server.";
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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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updateDbusEnvironment = 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 update the DBus activation environment after launching the
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desktop manager.
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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, or multiple keyboard layouts separated by commas.
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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 = [
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"HDMI-0"
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{ output = "DVI-0"; primary = true; }
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{ output = "DVI-1"; monitorConfig = "Option \"Rotate\" \"left\""; }
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];
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type = with types; listOf (coercedTo str (output: {
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inherit output;
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}) (submodule { options = xrandrOptions; }));
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# Set primary to true for the first head if no other has been set
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# primary already.
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apply = heads: let
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hasPrimary = any (x: x.primary) heads;
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firstPrimary = head heads // { primary = true; };
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newHeads = singleton firstPrimary ++ tail heads;
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in if heads != [] && !hasPrimary then newHeads else heads;
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description = ''
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Multiple monitor configuration, just specify a list of XRandR
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outputs. The individual elements should be either simple strings or
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an attribute set of output options.
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If the element is a string, it is denoting the physical output for a
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monitor, if it's an attribute set, you must at least provide the
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<option>output</option> option.
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The monitors will be mapped from left to right in the order of the
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list.
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By default, the first monitor will be set as the primary monitor if
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none of the elements contain an option that has set
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<option>primary</option> to <literal>true</literal>.
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<note><para>Only one monitor is allowed to be primary.</para></note>
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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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|
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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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|
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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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|
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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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|
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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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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;
|
||
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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'';
|
||
};
|
||
|
||
useGlamor = mkOption {
|
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type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Whether to use the Glamor module for 2D acceleration,
|
||
if possible.
|
||
'';
|
||
};
|
||
|
||
enableCtrlAltBackspace = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Whether to enable the DontZap option, which binds Ctrl+Alt+Backspace
|
||
to forcefully kill X. This can lead to data loss and is disabled
|
||
by default.
|
||
'';
|
||
};
|
||
|
||
terminateOnReset = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Whether to terminate X upon server reset.
|
||
'';
|
||
};
|
||
};
|
||
|
||
};
|
||
|
||
|
||
|
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###### implementation
|
||
|
||
config = mkIf cfg.enable {
|
||
|
||
hardware.opengl.enable = mkDefault true;
|
||
|
||
services.xserver.videoDrivers = mkIf (cfg.videoDriver != null) [ cfg.videoDriver ];
|
||
|
||
# FIXME: somehow check for unknown driver names.
|
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services.xserver.drivers = flip concatMap cfg.videoDrivers (name:
|
||
let driver =
|
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attrByPath [name]
|
||
(if xorg ? ${"xf86video" + name}
|
||
then { modules = [xorg.${"xf86video" + name}]; }
|
||
else null)
|
||
knownVideoDrivers;
|
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in optional (driver != null) ({ inherit name; modules = []; driverName = name; } // driver));
|
||
|
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nixpkgs.config.xorg = optionalAttrs (elem "vboxvideo" cfg.videoDrivers) { abiCompat = "1.18"; };
|
||
|
||
assertions = [
|
||
{ assertion = config.security.polkit.enable;
|
||
message = "X11 requires Polkit to be enabled (‘security.polkit.enable = true’).";
|
||
}
|
||
(let primaryHeads = filter (x: x.primary) cfg.xrandrHeads; in {
|
||
assertion = length primaryHeads < 2;
|
||
message = "Only one head is allowed to be primary in "
|
||
+ "‘services.xserver.xrandrHeads’, but there are "
|
||
+ "${toString (length primaryHeads)} heads set to primary: "
|
||
+ concatMapStringsSep ", " (x: x.output) primaryHeads;
|
||
})
|
||
];
|
||
|
||
environment.etc =
|
||
(optionals cfg.exportConfiguration
|
||
[ { source = "${configFile}";
|
||
target = "X11/xorg.conf";
|
||
}
|
||
# -xkbdir command line option does not seems to be passed to xkbcomp.
|
||
{ source = "${cfg.xkbDir}";
|
||
target = "X11/xkb";
|
||
}
|
||
])
|
||
# Needed since 1.18; see https://bugs.freedesktop.org/show_bug.cgi?id=89023#c5
|
||
++ (let cfgPath = "/X11/xorg.conf.d/10-evdev.conf"; in
|
||
[{
|
||
source = xorg.xf86inputevdev.out + "/share" + cfgPath;
|
||
target = cfgPath;
|
||
}]
|
||
);
|
||
|
||
environment.systemPackages =
|
||
[ xorg.xorgserver.out
|
||
xorg.xrandr
|
||
xorg.xrdb
|
||
xorg.setxkbmap
|
||
xorg.iceauth # required for KDE applications (it's called by dcopserver)
|
||
xorg.xlsclients
|
||
xorg.xset
|
||
xorg.xsetroot
|
||
xorg.xinput
|
||
xorg.xprop
|
||
xorg.xauth
|
||
pkgs.xterm
|
||
pkgs.xdg_utils
|
||
xorg.xf86inputevdev.out # get evdev.4 man page
|
||
]
|
||
++ optional (elem "virtualbox" cfg.videoDrivers) xorg.xrefresh;
|
||
|
||
environment.pathsToLink =
|
||
[ "/etc/xdg" "/share/xdg" "/share/applications" "/share/icons" "/share/pixmaps" ];
|
||
|
||
# The default max inotify watches is 8192.
|
||
# Nowadays most apps require a good number of inotify watches,
|
||
# the value below is used by default on several other distros.
|
||
boot.kernel.sysctl."fs.inotify.max_user_watches" = mkDefault 524288;
|
||
|
||
systemd.defaultUnit = mkIf cfg.autorun "graphical.target";
|
||
|
||
systemd.services.display-manager =
|
||
{ description = "X11 Server";
|
||
|
||
after = [ "systemd-udev-settle.service" "local-fs.target" "acpid.service" "systemd-logind.service" ];
|
||
wants = [ "systemd-udev-settle.service" ];
|
||
|
||
restartIfChanged = false;
|
||
|
||
environment =
|
||
{
|
||
XORG_DRI_DRIVER_PATH = "/run/opengl-driver/lib/dri"; # !!! Depends on the driver selected at runtime.
|
||
LD_LIBRARY_PATH = concatStringsSep ":" (
|
||
[ "${xorg.libX11.out}/lib" "${xorg.libXext.out}/lib" "/run/opengl-driver/lib" ]
|
||
++ concatLists (catAttrs "libPath" cfg.drivers));
|
||
} // cfg.displayManager.job.environment;
|
||
|
||
preStart =
|
||
''
|
||
${cfg.displayManager.job.preStart}
|
||
|
||
rm -f /tmp/.X0-lock
|
||
'';
|
||
|
||
script = "${cfg.displayManager.job.execCmd}";
|
||
|
||
serviceConfig = {
|
||
Restart = "always";
|
||
RestartSec = "200ms";
|
||
SyslogIdentifier = "display-manager";
|
||
# Stop restarting if the display manager stops (crashes) 2 times
|
||
# in one minute. Starting X typically takes 3-4s.
|
||
StartLimitInterval = "30s";
|
||
StartLimitBurst = "3";
|
||
};
|
||
};
|
||
|
||
services.xserver.displayManager.xserverArgs =
|
||
[ "-config ${configFile}"
|
||
"-xkbdir" "${cfg.xkbDir}"
|
||
# Log at the default verbosity level to stderr rather than /var/log/X.*.log.
|
||
"-verbose" "3" "-logfile" "/dev/null"
|
||
] ++ optional (cfg.display != null) ":${toString cfg.display}"
|
||
++ optional (cfg.tty != null) "vt${toString cfg.tty}"
|
||
++ optional (cfg.dpi != null) "-dpi ${toString cfg.dpi}"
|
||
++ optional (!cfg.enableTCP) "-nolisten tcp"
|
||
++ optional (cfg.autoRepeatDelay != null) "-ardelay ${toString cfg.autoRepeatDelay}"
|
||
++ optional (cfg.autoRepeatInterval != null) "-arinterval ${toString cfg.autoRepeatInterval}"
|
||
++ optional cfg.terminateOnReset "-terminate";
|
||
|
||
services.xserver.modules =
|
||
concatLists (catAttrs "modules" cfg.drivers) ++
|
||
[ xorg.xorgserver.out
|
||
xorg.xf86inputevdev.out
|
||
];
|
||
|
||
services.xserver.xkbDir = mkDefault "${pkgs.xkeyboard_config}/etc/X11/xkb";
|
||
|
||
system.extraDependencies = [
|
||
(pkgs.runCommand "xkb-layouts-exist" {
|
||
layouts=cfg.layout;
|
||
} ''
|
||
missing=()
|
||
while read -d , layout
|
||
do
|
||
[[ -f "${cfg.xkbDir}/symbols/$layout" ]] || missing+=($layout)
|
||
done <<< "$layouts,"
|
||
if [[ ''${#missing[@]} -eq 0 ]]
|
||
then
|
||
touch $out
|
||
exit 0
|
||
fi
|
||
|
||
cat >&2 <<EOF
|
||
|
||
Some of the selected keyboard layouts do not exist:
|
||
|
||
''${missing[@]}
|
||
|
||
Set services.xserver.layout to the name of an existing keyboard
|
||
layout (check ${cfg.xkbDir}/symbols for options).
|
||
|
||
EOF
|
||
exit -1
|
||
'')
|
||
];
|
||
|
||
services.xserver.config =
|
||
''
|
||
Section "ServerFlags"
|
||
Option "AllowMouseOpenFail" "on"
|
||
Option "DontZap" "${if cfg.enableCtrlAltBackspace then "off" else "on"}"
|
||
${cfg.serverFlagsSection}
|
||
EndSection
|
||
|
||
Section "Module"
|
||
${cfg.moduleSection}
|
||
EndSection
|
||
|
||
Section "Monitor"
|
||
Identifier "Monitor[0]"
|
||
${cfg.monitorSection}
|
||
EndSection
|
||
|
||
Section "InputClass"
|
||
Identifier "Keyboard catchall"
|
||
MatchIsKeyboard "on"
|
||
Option "XkbRules" "base"
|
||
Option "XkbModel" "${cfg.xkbModel}"
|
||
Option "XkbLayout" "${cfg.layout}"
|
||
Option "XkbOptions" "${cfg.xkbOptions}"
|
||
Option "XkbVariant" "${cfg.xkbVariant}"
|
||
EndSection
|
||
|
||
# Additional "InputClass" sections
|
||
${flip concatMapStrings cfg.inputClassSections (inputClassSection: ''
|
||
Section "InputClass"
|
||
${inputClassSection}
|
||
EndSection
|
||
'')}
|
||
|
||
|
||
Section "ServerLayout"
|
||
Identifier "Layout[all]"
|
||
${cfg.serverLayoutSection}
|
||
# Reference the Screen sections for each driver. This will
|
||
# cause the X server to try each in turn.
|
||
${flip concatMapStrings cfg.drivers (d: ''
|
||
Screen "Screen-${d.name}[0]"
|
||
'')}
|
||
EndSection
|
||
|
||
${if cfg.useGlamor then ''
|
||
Section "Module"
|
||
Load "dri2"
|
||
Load "glamoregl"
|
||
EndSection
|
||
'' else ""}
|
||
|
||
# For each supported driver, add a "Device" and "Screen"
|
||
# 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}
|
||
'';
|
||
|
||
fonts.enableDefaultFonts = mkDefault true;
|
||
|
||
};
|
||
|
||
}
|