If you search for "VT" in the Xorg.1.log you can see it attempts to start Xorg on VT 7... which is the VT where :0 is running. When everything works correctly, :1 should be started on VT 8, and the log confirms it.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1256150 Title: Xorg guest session fails to start if the user has logged out and logged in again To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1256150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
