https://bugs.freedesktop.org/show_bug.cgi?id=66963
--- Comment #137 from Bryan Quigley gquigs+bugs@gmail.com ---
(In reply to comment #135) Seems like you just got lucky this time. Does it work reliably if you disable radeon and boot into a non-X runlevel, then manually load radeon?
Nope definitely not reliably, but I did have it work one more time doing the above (booting with modeset=0) after about 10 or so reboots. When it fails I've never been able to get any debug information..
Any suggestions of other ways to get more debug information?