It'is not "stable" bug... I've have it once per 6 hours, after upgrade to 11.04
If i've got it again, I write details here -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779607 Title: Xorg freeze with i915 chipset on Toshiba satelite l300-144 laptop -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs