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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu [RX Vega 64] system freeze while gaming"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109955#c122">Comment # 122</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu [RX Vega 64] system freeze while gaming"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109955">bug 109955</a>
from <span class="vcard"><a class="email" href="mailto:haro41@gmx.de" title="haro41@gmx.de">haro41@gmx.de</a>
</span></b>
<pre>In my experience, this issue is related to mclk switching and it affects the
lowest mclk level only.
So you guy's can save a lot of power, if you, insteed of switching to highest
gfxlevel or to disable vsync, just disable the lowest mclk level by:
echo "manual" > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo "1 2 3" > /sys/class/drm/card0/device/pp_dpm_mclk
If you are building your kernel locally, look in this thread for a driver code
modification that works, without disabling the lowest mclk level (saves a few
watt on idle).</pre>
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