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Change power settings (add tlp, dell undervolting)

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Dmitriy 2019-09-17 21:45:07 +04:00
parent 0960b5c3a8
commit 0714cff4ce
1 changed files with 11 additions and 32 deletions
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43
modules/power.nix
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@ -1,40 +1,19 @@
{ config, pkgs, lib, ... }:
with rec {
inherit (config) device devices deviceSpecific;
inherit (config) device deviceSpecific;
};
with deviceSpecific; {
services.udev.extraRules = if isLaptop then
''
ACTION=="add|change", KERNEL=="sd*[!0-9]|sr*", ATTR{queue/scheduler}="bfq"
ACTION=="change", SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="${
pkgs.systemd
}/bin/systemctl start battery"
ACTION=="change", SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="${
pkgs.systemd
}/bin/systemctl start ac"
ACTION=="add|change", SUBSYSTEM=="backlight", MODE:="0777"
'' else "";
systemd.services.battery = {
services.tlp = {
enable = isLaptop;
description = "Executes commands needed on battery power";
script =
''
${pkgs.linuxPackages_latest.cpupower}/bin/cpupower frequency-set -g powersave
${pkgs.light}/bin/light -S 40
'' + (if !isSSD then ''
${pkgs.hdparm}/bin/hdparm -B 1 /dev/sda
'' else "");
};
systemd.services.ac = {
enable = isLaptop;
description = "Executes commands needed on ac power";
script =
''
${pkgs.linuxPackages_latest.cpupower}/bin/cpupower frequency-set -g performance
${pkgs.light}/bin/light -S 90
'' + (if !isSSD then ''
${pkgs.hdparm}/bin/hdparm -B 255 /dev/sda
'' else "");
extraConfig = ''
# To avoid filesystem corruption on btrfs formatted partitions
SATA_LINKPWR_ON_BAT=max_performance
'';
};
services.undervolt = {
enable = (device == "Dell-Laptop");
coreOffset = "-120";
gpuOffset = "-54";
}
}