after some time i reboot system again and get black screen again 2 times with errors in dmesg:
radeon 0000:00:01.0: couldn't schedule ib
[drm:radeon_cs_ib_chunk] *ERROR* Failed to schedule IB !
in latest v3.6 kernel exist another bug, kernel before linux-image-3.2.0-31-generic-pae doesn't have this problem
after some time i reboot system again and get black screen again 2 times with errors in dmesg: cs_ib_chunk] *ERROR* Failed to schedule IB !
radeon 0000:00:01.0: couldn't schedule ib
[drm:radeon_
in latest v3.6 kernel exist another bug, kernel before linux-image- 3.2.0-31- generic- pae doesn't have this problem