Graphics

INTEL_GPU_POWER_PROFILE_ON_AC/BAT/SAV

Intel GPU

Version 1.10 and newer

INTEL_GPU_POWER_PROFILE_ON_AC=base
INTEL_GPU_POWER_PROFILE_ON_BAT=base
INTEL_GPU_POWER_PROFILE_ON_SAV=power_saving

Select power profile for Intel Arc and Xe GPUs. Supported by the xe driver only (kernel 6.18 and newer). Possible values:

base
power_saving

Default when unconfigured: base (AC), base (BAT), power_saving (SAV)

INTEL_GPU_MIN/MAX/BOOST_FREQ_ON_AC/BAT

Intel GPU

INTEL_GPU_MIN_FREQ_ON_AC=0
INTEL_GPU_MIN_FREQ_ON_BAT=0
INTEL_GPU_MAX_FREQ_ON_AC=0
INTEL_GPU_MAX_FREQ_ON_BAT=0
INTEL_GPU_BOOST_FREQ_ON_AC=0
INTEL_GPU_BOOST_FREQ_ON_BAT=0

Set the min/max/turbo frequency for Intel GPUs. Supported by the xe and ì915 drivers. Possible values depend on your hardware. See the output of tlp-stat -g for available frequencies.

RADEON_DPM_PERF_LEVEL_ON_AC/BAT/SAV

AMD GPU

RADEON_DPM_PERF_LEVEL_ON_AC=auto
RADEON_DPM_PERF_LEVEL_ON_BAT=auto

Version 1.9 and newer

RADEON_DPM_PERF_LEVEL_ON_BAT=low

Controls the Dynamic power management (DPM) performance level of AMD GPUs. Supported by the amdgpu and radeon drivers. Possible values:

auto – dynamically select the optimal power profile for current conditions (recommended)
low – lock the clocks to the lowest state
high – lock the clocks to the highest state (beware of overheating on hardware with limited cooling)

Default when unconfigured: Default: auto (AC), auto (BAT), low (SAV)

RADEON_DPM_STATE_ON_AC/BAT

AMD GPU

This parameter is deprecated since version 1.10, do not use anymore

RADEON_DPM_STATE_ON_AC=performance
RADEON_DPM_STATE_ON_BAT=balanced

Controls the power management method of AMD GPUs. Possible values:

battery
balanced
performance

AMDGPU_ABM_LEVEL_ON_AC/BAT/SAV

AMD GPU

Version 1.7 and newer

AMDGPU_ABM_LEVEL_ON_AC=0
AMDGPU_ABM_LEVEL_ON_BAT=1

Version 1.9 and newer

AMDGPU_ABM_LEVEL_ON_SAV=3

Enable display panel Adaptive Backlight Modulation (ABM) of AMD GPUs. Possible levels are:

0 – off
1..4 – maximum brightness reduction allowed by the ABM algorithm, 1 represents the least and 4 the most power saving

Notes:

Requires AMD Vega or newer GPU with the amdgpu driver as of kernel 6.9
Savings are made at the expense of color balance

Default when unconfigured: 0 (AC), 1 (BAT), 3 (SAV)