[Bug 109246] HDMI connected monitors fail to sleep and instead turn back on when amdgpu.dc=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109246

--- Comment #13 from Nicholas Kazlauskas <nicholas.kazlauskas at amd.com> ---
(In reply to Michel Dänzer from comment #12)
> (In reply to tme from comment #9)
> > 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?)

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.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20190109/58ace3d5/attachment.html>