see https://bugzilla.gnome.org/show_bug.cgi?id=752438, that is what caused bug 753181
** Bug watch added: GNOME Bug Tracker #752438 https://bugzilla.gnome.org/show_bug.cgi?id=752438 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1479014 Title: "Cancel", "Next", and "Sign In" functioning incorrectly on login or locked screen in "Sign In?" section To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-gnome/+bug/1479014/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs