https://bugzilla.kernel.org/show_bug.cgi?id=52491
--- Comment #15 from Bruno Jacquet maxijac@free.fr 2013-01-17 19:26:36 --- (In reply to comment #14)
Better to try this patch instead first : http://people.freedesktop.org/~glisse/0001-drm-radeon-exclude-system-placeme...
With this patch, my game froze before I could even check the rendering. My cursor still moved, I could switch to tty1. I checked dmesg : nothing added. I went back to tty7 (X) and then it was stuck there.