i have a problem with the xserver. Sometimes it freezes complete, no mouse/keyboard and also no alt+print+k to kill the server. But when i restart, i found no error in any logfile. I don't know, where to start bug searching.
It appears rarely (1 time a month), but its annoying... Normally i don't restart my computer and only suspend it.
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
Can someone give hints, where to start, exploring the problem?