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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen flickering under amdgpu-experimental [buggy auto power profile]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102646#c41">Comment # 41</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen flickering under amdgpu-experimental [buggy auto power profile]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102646">bug 102646</a>
from <span class="vcard"><a class="email" href="mailto:af_mcinerney@hotmail.com" title="afm <af_mcinerney@hotmail.com>"> <span class="fn">afm</span></a>
</span></b>
<pre>RX 570
1002:67df [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev
ef)
Kernel: 4.19.2-300.fc29.x86_64
1920x1080 59.93*+
Lots of strange flickering and black lines with dc=1. Strange ghosting and
screen corruption with dc=0
echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo "0" > /sys/class/drm/card0/device/pp_dpm_mclk
Fixes the issue.
echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk
echo "0" > /sys/class/drm/card0/device/pp_dpm_mclk
echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk
Produces screen corruption for half a second on each change. Across all 3
monitors.</pre>
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