Comment # 15
on bug 96868
from Andy Furniss
(In reply to Jonas from comment #14) > I get the same behaviour here with my XFX R9 390, latest Arch Linux and > amdgpu driver. Forcing "high" power profile makes it work, but it also > raises the temps (and probably power draw) too much to my liking. > > If we could only up the vram frequency but not the core, maybe it would be a > more acceptable situation of temps/features. You should be able to do this eg. on my R9 285 echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level cat /sys/class/drm/card0/device/pp_dpm_mclk 0: 150Mhz * 1: 1375Mhz echo 1 > /sys/class/drm/card0/device/pp_dpm_mclk cat /sys/class/drm/card0/device/pp_dpm_mclk 0: 150Mhz 1: 1375Mhz * Though it will undo if you change modes or go into DPMS.
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