[Bug 43441] [RADEON:KMS:RV370:RESUME] garbage on screen (console or X) after suspend-resume with radeon (KMS only)

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Mon Sep 16 07:22:56 PDT 2013


--- Comment #4 from Adrian Knoth <adi at 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:



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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