72 lines
2.1 KiB
Nix
72 lines
2.1 KiB
Nix
{ config, lib, pkgs, ... }:
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{
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# Enable the TLP daemon
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services.tlp = {
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enable = true;
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settings = {
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# Use the new CPU frequency scaling governor
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CPU_SCALING_GOVERNOR_ON_AC = "schedutil";
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CPU_SCALING_GOVERNOR_ON_BAT = "schedutil";
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# Adjust CPU frequencies accordingly to the power state
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CPU_SCALING_MIN_FREQ_ON_AC = 800000;
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CPU_SCALING_MAX_FREQ_ON_AC = 3000000;
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CPU_SCALING_MIN_FREQ_ON_BAT = 800000;
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CPU_SCALING_MAX_FREQ_ON_BAT = 2300000;
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# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
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# A value of 0 disables, >=1 enables power saving (recommended: 1).
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# Default: 0 (AC), 1 (BAT)
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SOUND_POWER_SAVE_ON_AC = 0;
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SOUND_POWER_SAVE_ON_BAT = 1;
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# Runtime Power Management for PCI(e) bus devices: on=disable, auto=enable.
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# Default: on (AC), auto (BAT)
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RUNTIME_PM_ON_AC = "on";
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RUNTIME_PM_ON_BAT = "auto";
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# Battery feature drivers: 0=disable, 1=enable
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# Default: 1 (all)
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NATACPI_ENABLE = 1;
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TPACPI_ENABLE = 1;
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TPSMAPI_ENABLE = 1;
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};
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};
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# Enable the TLP daemon
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services.tlp = {
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enable = true;
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settings = {
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# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
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# A value of 0 disables, >=1 enables power saving (recommended: 1).
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# Default: 0 (AC), 1 (BAT)
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SOUND_POWER_SAVE_ON_AC = 0;
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SOUND_POWER_SAVE_ON_BAT = 1;
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# Runtime Power Management for PCI(e) bus devices: on=disable, auto=enable.
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# Default: on (AC), auto (BAT)
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RUNTIME_PM_ON_AC = "on";
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RUNTIME_PM_ON_BAT = "auto";
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# Battery feature drivers: 0=disable, 1=enable
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# Default: 1 (all)
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NATACPI_ENABLE = 1;
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TPACPI_ENABLE = 1;
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TPSMAPI_ENABLE = 1;
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};
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};
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# Suspend when the battery is critical
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services.udev.extraRules = ''
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SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{model_name}=="01AV405", ATTR{capacity}=="[0-5]", RUN+="${config.systemd.package}/bin/systemctl suspend -i"
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'';
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# Undervolt CPU and GPU
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services.undervolt = {
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enable = true;
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coreOffset = -100;
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gpuOffset = -75;
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};
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}
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