Right-clicking the key, and setting it as default for the sytem fixed the problem for me (see https://bugzilla.gnome.org/show_bug.cgi?id=599762).
After loging ut the button for halt and restart disappeared.
Right-clicking the key, and setting it as default for the sytem fixed the problem for me (see https:/ /bugzilla. gnome.org/ show_bug. cgi?id= 599762).
After loging ut the button for halt and restart disappeared.