{ config, pkgs, ... }:

{
  services = {
    # power management
    #tlp.enable = true;

    upower.enable = true;
  };

  powerManagement.scsiLinkPolicy = "med_power_with_dipm";

  # sound
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # backlight
  hardware.acpilight.enable = true;

}