From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 77930] New: radeon regression after update to kernel 3.13.6
(stable)
Date: Fri, 25 Apr 2014 14:19:12 +0000
Message-ID:
Priority
medium
Bug ID
77930
Assignee
dri-devel@lists.freedesktop.org
Summary
radeon regression after update to kernel 3.13.6 (stable)
Severity
major
Classification
Unclassified
OS
Linux (All)
Reporter
raziel_theripper@yahoo.com
Hardware
x86-64 (AMD64)
Status
NEW
Version
unspecified
Component
DRM/Radeon
Product
DRI
Created attachment 97956 [details]
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