https://bugs.freedesktop.org/show_bug.cgi?id=77930
Priority: medium
Bug ID: 77930
Assignee: dri-devel at lists.freedesktop.org
Summary: radeon regression after update to kernel 3.13.6
(stable)
Severity: major
Classification: Unclassified
OS: Linux (All)
Reporter: raziel_theripper at yahoo.com
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: DRM/Radeon
Product: DRI
Created attachment 97956
--> https://bugs.freedesktop.org/attachment.cgi?id=97956&action=edit
lspci
I have an Asus X550 series laptop with an AMD APU A8-5550M.
The integrated GPU is a 8550G and the dGPU is a 8670M.
After upgrading the kernel from 3.13.6 to 3.13.7 the machine becomes unbootable
and it freezes(black screen, possibly X not able to start).
Setting radeon.runpm=0 at boot time doesn't help.
After doing a bisect I've found the following commit to be the problematic one:
[drm/radeon] fix runpm disabling on non-PX harder.
Also, I have to mention that the bug seems to be reproducible on similar
hardware configurations, see: http://forums.gentoo.org/viewtopic-p-7529160.html
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