That's a known issue and a design decision from upstream, see e.g https://unix.stackexchange.com/questions/242129/gnome-3-how-to-set- power-button-to-shutdown-instead-of-suspend
** Bug watch added: GNOME Bug Tracker #781108 https://bugzilla.gnome.org/show_bug.cgi?id=781108 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1707026 Title: powerswitch cannot be configured to shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-settings-daemon/+bug/1707026/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs