Show AMDGPU Clocks

Requires root. The clock speeds will vary depending on what power_dpm_force_performance_level is set to. If you wish to see the maximum clock, set its value to high.

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cat /sys/kernel/debug/dri/0/amdgpu_pm_info
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GFX Clocks and Power:
2000 MHz (MCLK)
1266 MHz (SCLK)
GPU Temperature: 79 C
GPU Load: 0 %
UVD: Disabled
VCE: Disabled

Fan speed can be controlled through /sys/class/drm/card0/device/hwmon/hwmon0/pwm1. Values range from 0 to 255.

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echo '150' > /sys/class/drm/card0/device/hwmon/hwmon0/pwm1