christoph@christoph-dell:~$ sudo service bluetooth status
[sudo] Passwort für christoph:
Das hat nicht funktioniert, bitte nochmal probieren.
[sudo] Passwort für christoph:
● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since So 2018-08-12 17:02:25 CEST; 2min 5s ago
     Docs: man:bluetoothd(8)
 Main PID: 828 (bluetoothd)
   Status: "Running"
   CGroup: /system.slice/bluetooth.service
           └─828 /usr/lib/bluetooth/bluetoothd

Aug 12 17:02:26 christoph-dell bluetoothd[828]: Endpoint registered: sender=:1.38 path=/MediaEndpoint/A2DPSink
Aug 12 17:02:34 christoph-dell bluetoothd[828]: Endpoint registered: sender=:1.69 path=/MediaEndpoint/A2DPSource
Aug 12 17:02:34 christoph-dell bluetoothd[828]: Endpoint registered: sender=:1.69 path=/MediaEndpoint/A2DPSink
Aug 12 17:02:34 christoph-dell bluetoothd[828]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: Address already in use (98)
Aug 12 17:02:52 christoph-dell bluetoothd[828]: Endpoint unregistered: sender=:1.38 path=/MediaEndpoint/A2DPSource
Aug 12 17:02:52 christoph-dell bluetoothd[828]: Endpoint unregistered: sender=:1.38 path=/MediaEndpoint/A2DPSink
Aug 12 17:03:38 christoph-dell bluetoothd[828]: Unable to register GATT service with handle 0x0001 for device 2C:41:A1:C8:FE:06
Aug 12 17:03:38 christoph-dell bluetoothd[828]: Unable to register GATT service with handle 0x000d for device 2C:41:A1:C8:FE:06
Aug 12 17:03:38 christoph-dell bluetoothd[828]: Unable to register GATT service with handle 0x0016 for device 2C:41:A1:C8:FE:06
Aug 12 17:03:38 christoph-dell bluetoothd[828]: Unable to register GATT service with handle 0x002c for device 2C:41:A1:C8:FE:06