https://bugzilla.kernel.org/show_bug.cgi?id=86891
--- Comment #2 from Michael Mair-Keimberger bu9zilla@gmail.com --- (In reply to Alex Deucher from comment #1)
Likely a duplicate of: https://bugs.freedesktop.org/show_bug.cgi?id=84662 and https://bugs.freedesktop.org/show_bug.cgi?id=84570 Can you bisect?
Sure, give me some days - i'll try to bisect the problem. :) Guess it will take some time, since there were many commits between 3.16 and 3.17rc1.
I'll take the kernel git tree for the bisect (git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git) and bisect between 3.16rc8 and 3.17rc1.
As soon as i have some result's i'll gonna update this bug.