Hello,
I've got my system restored from tarball and after that my shutdown/reboot buttons are missing the System menu. I don't know if the problem comes from gnome ~2.28 but it seems it could be. I cannot switch users from the same menu moreover. Before the restoration I had these option and gnome-power-manager didn't solve the problem. I can: gnome-power-cmd.sh shutdown but it isn't as nice as the previous menu.
I've searched on internet and in this forum but didn't found any tip to solve the problem yet. Could someone give me a hand please ?


