Same thing here on a Dell Latitude D810 connecting to a Dell Bluetooth & Mouse Combo, running a stock, updated edgy. After removing and reinserting the dongle into the same USB port the input devices start working.
-- Bluetooth Mouse and Keyboard Broken in Dapper & Edgy https://launchpad.net/bugs/32415 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs