I'm still facing this problem, but now I've understood what is the trigger that makes this bug happen. It appears just after having modified the brightness of my notebook's display!!!
Help this will help you... Giorgio -- [Intrepid] Window enviroment crashes https://bugs.launchpad.net/bugs/283639 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs