The bug is back in Ubuntu 13.04 with gnome 3.8 using the official gnome- ppa:
I have been logging that message as follows: JS ERROR: !!! Exception in callback for signal: activate JS ERROR: !!! message = '"Unable to create transient display: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.DisplayManager was not provided by any .service files"' JS ERROR: !!! fileName = '"/usr/share/gnome-shell/js/ui/userMenu.js"' JS ERROR: !!! lineNumber = '870' JS ERROR: !!! stack = '"0 anonymous()@/usr/share/gnome-shell/js/ui/userMenu.js:870 1 wrapper()@/usr/share/gjs-1.0/lang.js:213 2 _emit("name" = undefined, "handlers" = undefined, "i" = undefined, "length" = undefined, "arg_array" = undefined, "arguments" = undefined)@/usr/share/gjs-1.0/signals.js:124 3 anonymous()@/usr/share/gnome-shell/js/ui/popupMenu.js:114 4 wrapper()@/usr/share/gjs-1.0/lang.js:213 5 anonymous()@/usr/share/gnome-shell/js/ui/popupMenu.js:87 6 wrapper()@/usr/share/gjs-1.0/lang.js:213 "' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1064269 Title: When running lightDM user switching doesnt work To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1064269/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs