https://bugs.freedesktop.org/show_bug.cgi?id=68235
--- Comment #7 from Alexandre Demers alexandre.f.demers@gmail.com --- Hi Alex. I'm about to test your suggestion. Meanwhile, I identified the original commit that broke the driver before being fixed by f90555cbe629e14c6af1dcec1933a3833ecd321f (but ending by the display hanging, eventhough I can connect through ssh)
So the first bad commit was: 7ad8d0687bb5030c3328bc7229a3183ce179ab25 is the first bad commit commit 7ad8d0687bb5030c3328bc7229a3183ce179ab25 Author: Alex Deucher alexander.deucher@amd.com Date: Mon Jul 1 16:07:18 2013 -0400
drm/radeon/dpm: re-enable state transitions for Cayman
Was disabled due to stability issues on certain boards caused by the a bug in the parsing of the atom mc reg tables. That's fixed now so re-enable.
Signed-off-by: Alex Deucher alexander.deucher@amd.com
:040000 040000 de8dfc2a15d5114e81636811d7e3b39c15fc515b d0e1ee828f10456d39e2ab30cc6598203e50fa6e M drivers
Heading for your suggestion right away with http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-3.12-wip-gcc-fixes.