https://bugs.freedesktop.org/show_bug.cgi?id=79980
--- Comment #226 from Tilman Sauerbeck tilman@code-monkey.de --- (In reply to Tilman Sauerbeck from comment #225)
(In reply to Michel Dänzer from comment #223)
For those still having problems, the kernel patches http://lists.freedesktop.org/archives/dri-devel/2015-January/074968.html and http://lists.freedesktop.org/archives/dri-devel/2015-January/074969.html might be worth a try.
I applied http://lists.freedesktop.org/archives/dri-devel/2015-January/074969.html on top of kernel 3.18.4, and got:
Oops, I tested with 3.18.2 (the latest stable release as of today).