Same crash with driver xserver-xorg-video-ati and mir enabled after latest updates. Even the failsafe session failed to start. X starts fine without unity-system-compositor
** Changed in: xorg-server (Ubuntu) Importance: Medium => Critical ** Information type changed from Private to Public ** Also affects: unity-system-compositor (Ubuntu) Importance: Undecided Status: New ** Changed in: unity-system-compositor (Ubuntu) Status: New => Confirmed ** Changed in: unity-system-compositor (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1218456 Title: Xorg assert failure: X: ../../../../include/privates.h:123: dixGetPrivateAddr: Assertion `key->initialized' failed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-system-compositor/+bug/1218456/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs