Considering the VT switch/suspend business in the log, this might be related to https://bugs.launchpad.net/fglrx/+bug/197209
Why X is trying to suspend, of course, I have no idea.
Considering the VT switch/suspend business in the log, this might be related to https:/ /bugs.launchpad .net/fglrx/ +bug/197209
Why X is trying to suspend, of course, I have no idea.