nixos/profiles/acpid.nix

   1 { config, lib, pkgs, ... }:
   2 {
   3 hardware.acpilight.enable = true;
   4 services.acpid = {
   5   enable = true;
   6   handlers = {
   7     brightnessDown = {
   8       event = "video/brightnessdown.*";
   9       action = "${pkgs.acpilight}/bin/xbacklight -dec 10";
  10     };
  11     brightnessUp = {
  12       event = "video/brightnessup.*";
  13       action = "${pkgs.acpilight}/bin/xbacklight -inc 10";
  14     };
  15   };
  16   acEventCommands = ''
  17     vals=($1)
  18     case ''${vals[3]} in
  19       00000000) # unplugged
  20         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g powersave;;
  21       00000001) # plugged in
  22         ${pkgs.linuxPackages.cpupower}/bin/cpupower frequency-set -g ondemand;;
  23     esac
  24   '';
  25 };
  26 }