Also happens for me. X is completly frozen and the machine needs a hard reboot. Logging in through SSH works though. 100% CPU utilization for the process that was using the ATI graphics card, in my case that process is always XBMC.
Dump message from dmesg in attachment.
Also happens for me. X is completly frozen and the machine needs a hard reboot. Logging in through SSH works though. 100% CPU utilization for the process that was using the ATI graphics card, in my case that process is always XBMC.
Dump message from dmesg in attachment.