https://bugs.freedesktop.org/show_bug.cgi?id=37490
--- Comment #6 from William Pitcock nenolod@systeminplace.net 2011-05-23 12:45:35 PDT --- re: color tiling, i believe it is disabled by default, but i will try and see if that is the problem.
i will also get dmesg / Xorg logs when i switch back over to DRI2.