[Bug 107731] radeon (amdgpu) DisplayPort loss of max-resolution on DP monitor (after monitor power saving / idle)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107731

L.S.S. <ragnaros39216 at yandex.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ragnaros39216 at yandex.com

--- Comment #5 from L.S.S. <ragnaros39216 at yandex.com> ---
Created attachment 143701
  --> https://bugs.freedesktop.org/attachment.cgi?id=143701&action=edit
Logs with drm.debug=4. Looks like some DC validation failure.

It seems when I power cycle the monitor, I get some "failed DC validation"
errors. As for link training failure... yeah, just looked at the log and it did
mention something like that.

I just upgraded my Linux systems to 5.0 kernel, and the problem persists there.
The log is also done with 5.0 kernel on one of the systems.

The problem seems to be amdgpu/DC related as my Linux systems have AMD cards of
different generations and are all affected by the issue (and 100%
reproducible).

-- 
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/20190317/3b7bc2f8/attachment.html>