19 lines
530 B
Nix
19 lines
530 B
Nix
{ pkgs, ... }:
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let
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undervoltGpu = pkgs.writeShellScript "undervolt-gpu" ''
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set -xe
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cd $1
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echo "manual" > power_dpm_force_performance_level
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echo "1" > pp_power_profile_mode
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test -e pp_od_clk_voltage
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echo "vo -120" > pp_od_clk_voltage
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echo "c" > pp_od_clk_voltage
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'';
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in
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{
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boot.kernelParams = [ "amdgpu.ppfeaturemask=0xfffd7fff" ];
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services.udev.extraRules = ''
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ACTION=="add", SUBSYSTEM=="hwmon", ATTR{name}=="amdgpu", ATTR{power1_cap}="186000000", RUN+="${undervoltGpu} %S%p/device"
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'';
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}
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