Comment # 15
on bug 105425
from MirceaKitsune
Today I've ran two tests to ensure that frequencies and DPM are not a factor.
- Setting the DPM profile to low by running the following commands as root:
echo battery > /sys/class/drm/card0/device/power_dpm_state
echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level
- Booting my system with the following Kernel parameters to disable DPM:
radeon.dpm=0 amdgpu.dpm=0
Just like with everything else, they made absolutely no difference: Xonotic
froze the machine after only 8 minutes of running each time. The settings are
applied and visible by checking /sys/kernel/debug/dri/0/amdgpu_pm_info, and are
even reflected in the performance which was reduced from 60 FPS to below 30
FPS.
This is NOT a hardware failure: The freezes occur identically even if both the
core (GPU) and memory (VRAM) clocks are under-clocked to very safe frequencies.
The key must be something in the Linux firmware for this card.
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