我将 ubuntu 从 13.4 升级到 13.10，但我的蓝牙停止工作。当我打开蓝牙时，我可以将其打开，但可见性没有显示任何内容，也没有检测到任何设备。
当我： dmesg | grep Blue
[ 2.046249] usb 3-1: Product: Bluetooth V2.0 Dongle
[ 2.046252] usb 3-1: Manufacturer: Bluetooth v2.0
[ 15.255710] Bluetooth: Core ver 2.16
[ 15.255748] Bluetooth: HCI device and connection manager initialized
[ 15.255759] Bluetooth: HCI socket layer initialized
[ 15.255765] Bluetooth: L2CAP socket layer initialized
[ 15.255776] Bluetooth: SCO socket layer initialized
[ 20.110379] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 20.110386] Bluetooth: BNEP filters: protocol multicast
[ 20.110400] Bluetooth: …bluetooth ×1