Please attach Xorg.0.log and your xorg.conf if this issue still persists. Thanks.
** Changed in: xorg (Ubuntu) Status: Unconfirmed => Needs Info -- system crashes when the screen resolution is changed and dual head is enabled https://launchpad.net/bugs/44620 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs