[Bug 77930] New: radeon regression after update to kernel 3.13.6 (stable)

[bugzilla-daemon at freedesktop.org]

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

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20140425/680f5e6b/attachment.html>