I have this problem in 12.04 LTS too, after upgrading to HWE kernel and always happens when I launch virtualbox (downloaded from virtualbox site as the one packaged with ubuntu doesn't run anymore after the above upgrade).
My VGA controller is NVIDIA Corporation G72 [GeForce 7200 GS / 7300 SE] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1333685 Title: XORG Idle Channel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1333685/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
