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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - HDMI connected monitors fail to sleep and instead turn back on when amdgpu.dc=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109246#c13">Comment # 13</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - HDMI connected monitors fail to sleep and instead turn back on when amdgpu.dc=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109246">bug 109246</a>
from <span class="vcard"><a class="email" href="mailto:nicholas.kazlauskas@amd.com" title="Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>"> <span class="fn">Nicholas Kazlauskas</span></a>
</span></b>
<pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=109246#c12">comment #12</a>)
<span class="quote">> (In reply to tme from <a href="show_bug.cgi?id=109246#c9">comment #9</a>)
> > Setting amdgpu.dc=1 on 4.15.18 and 4.16.18 does not reproduce the problem.
> > It does, however, reproduce on 4.17.19.
>
> Can you bisect between 4.16.18 and 4.17.19?
>
> (I see some HPD filtering related changes between them, Nicholas / Harry
> maybe you can take a look if anything jumps out?)</span >
I haven't had a chance to look into the HPD changes yet, but we haven't seen
this bug occur with our DPMS tests so I'm guessing that it's monitor specific.
A system environment with Ubuntu/Plasma/xf86-video-amdgpu seems pretty standard
at least.
A bisection point on amd-staging-drm-next would certainly help narrow this
down.</pre>
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