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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Heavy screen flickering in OpenGL apps on R9 390"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96326#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Heavy screen flickering in OpenGL apps on R9 390"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96326">bug 96326</a>
from <span class="vcard"><a class="email" href="mailto:0xe2.0x9a.0x9b@gmail.com" title="Jan Ziak <0xe2.0x9a.0x9b@gmail.com>"> <span class="fn">Jan Ziak</span></a>
</span></b>
<pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=96326#c3">comment #3</a>)
<span class="quote">> Please attach your xorg log and dmesg output.</span >
Upstream Linux kernel does not support variable mclk on R9 390. I enabled
variable mclk by patching some code in drivers/gpu/drm/amd/amdgpu/ (mostly
ci_dpm.c).
dmesg output contains some logging messages I added to my copy of Linux kernel
source code.
<span class="quote">> What resolution and refresh rate are you using on your monitor?</span >
1920x1080 60Hz
<span class="quote">> Also are you using radeon or amdgpu?</span >
Currently amdgpu.ko, radeon.ko in the past.</pre>
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