That looks like a gnome-power-manager bug actually. gnome-power-manager is what responds to your power button, and displays that message because update-manager requested that it not perform any power management action.
** Changed in: gnome-power-manager (Ubuntu) Sourcepackagename: policykit => gnome-power-manager -- "Request to do policy action" notification is useless https://bugs.launchpad.net/bugs/338296 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs