62 lines
1.4 KiB
Nix
62 lines
1.4 KiB
Nix
{ config, lib, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
enabled = elem "displaylink" config.services.xserver.videoDrivers;
|
|
|
|
displaylink = config.boot.kernelPackages.displaylink;
|
|
|
|
in
|
|
|
|
{
|
|
|
|
config = mkIf enabled {
|
|
|
|
boot.extraModulePackages = [ displaylink ];
|
|
|
|
boot.kernelModules = [ "evdi" ];
|
|
|
|
# Those are taken from displaylink-installer.sh and from Arch Linux AUR package.
|
|
|
|
services.udev.extraRules = ''
|
|
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="17e9", ATTR{bNumInterfaces}=="*5", TAG+="uaccess"
|
|
'';
|
|
|
|
powerManagement.powerDownCommands = ''
|
|
#flush any bytes in pipe
|
|
while read -n 1 -t 1 SUSPEND_RESULT < /tmp/PmMessagesPort_out; do : ; done;
|
|
|
|
#suspend DisplayLinkManager
|
|
echo "S" > /tmp/PmMessagesPort_in
|
|
|
|
#wait until suspend of DisplayLinkManager finish
|
|
read -n 1 -t 10 SUSPEND_RESULT < /tmp/PmMessagesPort_out
|
|
'';
|
|
|
|
powerManagement.resumeCommands = ''
|
|
#resume DisplayLinkManager
|
|
echo "R" > /tmp/PmMessagesPort_in
|
|
'';
|
|
|
|
systemd.services.displaylink = {
|
|
description = "DisplayLink Manager Service";
|
|
after = [ "display-manager.service" ];
|
|
wantedBy = [ "graphical.target" ];
|
|
|
|
serviceConfig = {
|
|
ExecStart = "${displaylink}/bin/DisplayLinkManager";
|
|
Restart = "always";
|
|
RestartSec = 5;
|
|
};
|
|
|
|
preStart = ''
|
|
mkdir -p /var/log/displaylink
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
}
|