... and I see the same line in syslog as Tomas described: --------- Aug 7 20:24:08 svinogradov-lt gdm[3822]: WARNING: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 ---------
... and I see the same line in syslog as Tomas described: xioerror_ handler: Fatal X error - Restarting :0
---------
Aug 7 20:24:08 svinogradov-lt gdm[3822]: WARNING: gdm_slave_
---------