https://bugs.freedesktop.org/show_bug.cgi?id=69341

--- Comment #22 from langkamp@tomblog.de --- ah sorry - I see radeon.dpm=1 enabled in your log. My next guess would be to use glamor 0.5.99 AND kernel 3.12 and not 3.11+drmnext

I did NOT test with 3.11 or glamor 0.5.1 and had and have it only working since 3.12rc4 and glamor 0.5.99