Same problem here, but in my case it's sporadic and not 100% reproducible.
[drm:init_ring_common] *ERROR* render ring head not reset to zero ctl 00000000 head 02001000 ...
Occurs in periods of innactivity, but it's unrelated with suspension or hibernate (I have them disabled). Some times hard to see because of turning off the screen hides the message.
Same problem here, but in my case it's sporadic and not 100% reproducible.
[drm:init_ ring_common] *ERROR* render ring head not reset to zero ctl 00000000 head 02001000 ...
Occurs in periods of innactivity, but it's unrelated with suspension or hibernate (I have them disabled). Some times hard to see because of turning off the screen hides the message.
Ubuntu 10.10 up-to-date