My devices can't shutdown "automaticly". I have two machines with the same troubles:
1)On notebook: Notebook can't shutdown automaticly, when the battery capacity is extremely low. I applied different settings in dconf org.gnome.settings-daemon.plugins.power , but there is no result. I even set FALSE at "use time for policy", but there are no actions except of notifications.
2)On the PC I'm unavailable to shutdown PC via button. I may set suspend etc on the power button, but if I choose "shutdown" - the interactive dialog opens, where I am to choose action once again
3)Everybody needs to confirm their choise when they hit "restart" or "shutdown" in the Unity tray menu.
So I don't know where is the problem exactly. But it seems that all power settings are located at org.gnome.settings-daemon.plugins.power and this is gnome-power-manager. How to solve it? The first trouble is most critical