(In reply to Dominique Leuenberger from comment #2) > If you are running in a wayland session, then it is known that > gnome-session-failed does not work (if gnome-shell crashed/failed to start, > there is no wayland compositor and hence nothing gtk3 could paint on) For reference, this would be https://bugzilla.gnome.org/show_bug.cgi?id=775337