Comment # 4
on bug 106188
from tempel.julian@gmail.com
Ok, it's simple. To unlock higher clocks, I simply have to set "/sys/class/drm/card0/device/pp_sclk_od" as well. To sum up: For my 1209MHz 900mV I have to do the following: echo "2" > /sys/class/drm/card0/device/pp_sclk_od echo "s 7 1209 900" > /sys/class/drm/card0/device/pp_od_clk_voltage echo "c" > /sys/class/drm/card0/device/pp_od_clk_voltage Works like a charm, thanks for the "Wattman" functionality! However, I am still not able to raise the maximum allowed power consumption of the GPU. It's clear that "/sys/class/drm/card0/device/hwmon/hwmon0/power1_cap" sets the actual power limit and thus I need to raise it. But the problem is: - I can't set it higher than power1_cap_max, only values below work. - power1_cap_max equals to power1_cap, so raising power consumption is actually completely forbidden - Despite of being root, I don't have write access to power1_cap_max, unlike to power1_cap So, it seems I'm being stuck and there is no way of increasing allowed maximum power consumption, which is not a problem with Wattman on Windows. I suppose either I'm missing a boot parameter to unlock write access to power1_cap_max, or there might be a bug in amdgpu driver. Any help appreciated.
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