"sudo service bluetooth restart" also works as a workaround for me
Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Ubuntu Natty 32bits
2.6.38-8-generic
Compaq NX9030
"sudo service bluetooth restart" also works as a workaround for me
Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Ubuntu Natty 32bits
2.6.38-8-generic
Compaq NX9030