I had this same problem. Installing the package hal fixed this and another gnome-power-manager problem i was having.
Until a few weeks ago, gnome-power-manager was working fine on my system without hal installed. But according to the GNOME website gnome-power- manager depends on hal. Should the Ubuntu gnome-power-manager package depend on hal also? -- Shutdown, but logoff https://launchpad.net/bugs/45536 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
