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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#c58">Comment # 58</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:tempel.julian@gmail.com" title="tempel.julian@gmail.com">tempel.julian@gmail.com</a>
</span></b>
<pre>I've written a small script to only write into pp_dpm_mclk when it's not forced
into pstate 2:
#!/bin/bash
if ! cat /sys/class/drm/card0/device/pp_dpm_mclk |
grep -xqFe "2: 2250Mhz *"
then
echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk
fi
---
Can be restarted every 1s via systemd:
[Unit]
Description=watch-pp_dpm_mclk
StartLimitIntervalSec=0
[Service]
ExecStart=.../watch-pp_dpm_mclk.sh
Restart=always
RestartSec=1
[Install]
WantedBy=multi-user.target
---
Seems to do the trick without nasty side effects.
Real fixes for the memory clock change flicker and the not sticking pp_dpm_mclk
value would of course be better.</pre>
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