ilyakooo0/nixpkgs
1
0
Fork 0
mirror of https://github.com/ilyakooo0/nixpkgs.git synced 2024-12-27 05:43:50 +03:00
Code Issues Projects Releases Wiki Activity

xserver: Allow to set XRandR multi head layout.

Browse Source 
This is currently only a very simple implementation which just recurses a list
of heads that get chained together to the right of the corresponding previous
item of the list.

If I forgot about something in the already existing configuration options,
please let me know or if this commit is useless or a duplicate, feel free to
revert. But by looking at implementation before this commit, I only see zaphod
and/or quirky xinerama-like configuration options.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This commit is contained in:
aszlig 2013-01-10 00:31:08 +01:00
parent e4d949ec88
commit 0129717b17
No known key found for this signature in database
GPG Key ID: D0EBD0EC8C2DC961
1 changed files with 47 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
modules/services/x11/xserver.nix
View File

@ -43,6 +43,36 @@ let
pkgs.xorg.fontadobe75dpi
];
# Just enumerate all heads without discarding XRandR output information.
xrandrHeads = let
mkHead = num: output: {
name = "multihead${toString num}";
inherit output;
};
in imap mkHead cfg.xrandrHeads;
xrandrDeviceSection = flip concatMapStrings xrandrHeads (h: ''
Option "monitor-${h.output}" "${h.name}"
'');
# Here we chain every monitor from the left to right, so we have:
# m4 right of m3 right of m2 right of m1 .----.----.----.----.
# Which will end up in reverse ----------> | m1 | m2 | m3 | m4 |
# `----^----^----^----'
xrandrMonitorSections = let
mkMonitor = previous: current: previous ++ singleton {
inherit (current) name;
value = ''
Section "Monitor"
Identifier "${current.name}"
${optionalString (previous != []) ''
Option "RightOf" "${(head previous).name}"
''}
EndSection
'';
};
monitors = foldl mkMonitor [] xrandrHeads;
in concatMapStrings (getAttr "value") monitors;
configFile = pkgs.stdenv.mkDerivation {
name = "xserver.conf";
@ -256,6 +286,21 @@ in
description = "Contents of the first Monitor section of the X server configuration file.";
};
xrandrHeads = mkOption {
default = [];
example = [ "HDMI-0" "DVI-0" ];
type = with types; listOf string;
description = ''
Simple multiple monitor configuration, just specify a list of XRandR
outputs which will be mapped from left to right in the order of the
list.
Be careful using this option with multiple graphic adapters or with
drivers that have poor support for XRandR, unexpected things might
happen with those.
'';
};
moduleSection = mkOption {
default = "";
example =
@ -530,6 +575,7 @@ in
Identifier "Device-${driver.name}[0]"
Driver "${driver.driverName}"
${cfg.deviceSection}
${xrandrDeviceSection}
EndSection
Section "Screen"
@ -572,6 +618,7 @@ in
EndSection
'')}
${xrandrMonitorSections}
${cfg.extraXorgOptions}
'';