From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 43441] [RADEON:KMS:RV370:RESUME] garbage on screen (console or
	X) after suspend-resume with radeon (KMS only)
Date: Mon, 16 Sep 2013 14:22:56 +0000
Message-ID: <bug-43441-2300-8AbIxF1q33@https.bugzilla.kernel.org/>
References: <bug-43441-2300@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=43441

--- Comment #4 from Adrian Knoth <adi@drcomp.erfurt.thur.de> ---
I can report similar (same?) garbage with the following device:

01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
RS482M [Mobility Radeon Xpress 200]


Kernel version is 3.11.

While UMS always used to work, KMS is causing trouble.


Note that garbage goes away when I plug in the A/C power supply, in other
words, it only happens when running on battery.

I've added two videos showing the corruption:

   http://adi.loris.tv/radeon-kms1.mp4

   http://adi.loris.tv/radeon-kms2.mp4


I guess it's PM related, since radeon with KMS sometimes fails to properly
resume/suspend, but I haven't noticed a reproducible pattern. As a rough
estimate, first suspend/resume cycle works, second almost always fails. If not,
then the 3rd will.

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