Duplicate : https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/122616
-- Screen freezes when switching user (reboot required) https://bugs.launchpad.net/bugs/108519 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs