Looks similar (but slightly different) to bug 1505409. I wonder if we/I might have buried other instances of this same crash in the duplicates list of bug 1505409...
** Information type changed from Private to Public ** Summary changed: - gnome-shell crashed with signal 5 in _XEventsQueued() + gnome-shell crashed with SIGTRAP in _XEventsQueued from XPending from gdk_check_xpending from gdk_check_xpending from gdk_event_source_check from g_main_context_check -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1710030 Title: gnome-shell crashed with SIGTRAP in _XEventsQueued from XPending from gdk_check_xpending from gdk_check_xpending from gdk_event_source_check from g_main_context_check ["BadMatch (invalid parameter attributes)"] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1710030/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs