Public bug reported: When switching to a guest session, or to a different user, the system often freezes. At times this also happens when terminating a guest session. Ctrl+Alt+Fn and Ctrl+Alt+Del dont have any effect, and apparently also SysReq+key. The only way of regaining control is to switch off and on the PC with the power button.
My PC has an Intel Core i5 CPU 760 @ 2.80GHz × 4 with 8GB of RAM, a 450GB hard disk, and an Nvidia Quadro 400 graphics card. I'm running 64 bit Ubuntu 12.10 with the Noveau drivers. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1129486 Title: System freezes when switching to guest session or other user To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1129486/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs