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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - WARNING at dcn10_hw_sequencer.c:868 dcn10_verify_allow_pstate_change_high()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109628#c33">Comment # 33</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - WARNING at dcn10_hw_sequencer.c:868 dcn10_verify_allow_pstate_change_high()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109628">bug 109628</a>
from <span class="vcard"><a class="email" href="mailto:chris.snook@gmail.com" title="Chris Snook <chris.snook@gmail.com>"> <span class="fn">Chris Snook</span></a>
</span></b>
<pre>(In reply to Johannes Hirte from <a href="show_bug.cgi?id=109628#c28">comment #28</a>)
<span class="quote">> From the reports, it seems to be compositor related. For me, kwin with
> OpenGL 3.1 backend works fine. xfwm4 seems to trigger the bug, maybe other
> compositors too.</span >
Confirmed that the workaround of switching to the kwin OpenGL 3.1 compositor
works for me.
kernel: 5.3.0-19-generic (Ubuntu 19.10)
window manager: kwin-x11 4:5.16.5-0ubuntu1
CPU: Ryzen Pro 2500U
machine: Lenovo Thinkpad A485
X server: xserver-xorg 1:7.7+19ubuntu12
userspace driver: xserver-xorg-video-amdgpu 19.0.1-1ubuntu1
I'm happy to test patches or reproduce.</pre>
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