Hi If for some reason, fallback mode doesn' get activated or the default interface is not working properly, would it be useful to have a option to choose fallback mode in GDM itself? I recently ran into a issue where GNOME Shell would launch but all the windows were black and hence couldn't go to system settings and force fallback mode on. I traced this problem due a upgrade issue eventually but in such situations, ability to choose the mode right in the login screen is useful Another option I think is needed is a safe mode which basically ignores all the installed extensions. The reason is that, these GNOME Shell extensions are essentially arbitrary javascript and if I install a bunch of extensions and one of them has a bug, GNOME Shell basically gives up and you can't login. Similar to Firefox, a safe mode might be handy to have Rahul -- desktop mailing list desktop@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/desktop