I think I see why this is happening. A callback is being used after the object that registered it dies.
** Changed in: gnome-control-center (Ubuntu Precise) Status: Confirmed => In Progress ** Changed in: gnome-control-center (Ubuntu Precise) Assignee: (unassigned) => Michael Terry (mterry) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/843274 Title: gnome-control-center crashed with SIGSEGV in on_screen_changed() To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/843274/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs