Ubuntu
xorg package

  1. Bug #781402
  2. Comment #9

Comment 9 for bug 781402

Revision history for this message
Roland (roland-breedveld) wrote :

Same problem on Lenovo T61 with screensaver disabled.
It mostly happens after a lock-screen.

on the console (ctr-alt-f1) tried to reload compiz and unity, this didn't help.

reboot is not necessary, a simple pkill -9 -u <user-name> on the console will restart your X.