Please have a look at bug #127101, bug #138256, and bug #141063 (and maybe many, many more). Seems to me like this is a xserver-xorg-video- intel rather then a xorg or 915resolution one. At least you, Adam, are affected by the intel bug(s).
-- xorg 7.2 or 915 resolution crashing on logout https://bugs.launchpad.net/bugs/147068 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