https://bugs.freedesktop.org/show_bug.cgi?id=63997
--- Comment #38 from Andreas Galauner andreas@galauner.de --- I'm affected on this bug, too. glxgears looks the same like in the video and XBMC is unusable.
I'm on the gentoo kernel 3.12.0 with mesa 9.2.3 and libdrm 2.4.48.