Kali LinuxでBluetoothが機能しない

まあ、Bluetoothがいつもオフになる問題があります。設定 - > Bluetoothに移動してオンにしようとするたびに、しばらくしてから再びオフになります。私は次のコマンドを試しました。

aptitude install bluetooth

その後実行

/etc/init.d/bluetooth start

その後実行しましたが、/etc/init.d/bluetooth status次のように表示されます。

● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2017-01-17 21:13:47 UTC; 29s ago
     Docs: man:bluetoothd(8)
 Main PID: 7939 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/bluetooth.service
           └─7939 /usr/lib/bluetooth/bluetoothd

Jan 17 21:13:47 kali bluetoothd[7939]: Error adding Link Loss service
Jan 17 21:13:47 kali bluetoothd[7939]: Not enough free handles to register ...ce
Jan 17 21:13:47 kali bluetoothd[7939]: Not enough free handles to register ...ce
Jan 17 21:13:47 kali bluetoothd[7939]: Not enough free handles to register ...ce
Jan 17 21:13:47 kali bluetoothd[7939]: Current Time Service could not be re...ed
Jan 17 21:13:47 kali bluetoothd[7939]: gatt-time-server: Input/output error (5)
Jan 17 21:13:47 kali bluetoothd[7939]: Not enough free handles to register ...ce
Jan 17 21:13:47 kali bluetoothd[7939]: Not enough free handles to register ...ce
Jan 17 21:13:47 kali bluetoothd[7939]: Sap driver initialization failed.
Jan 17 21:13:47 kali bluetoothd[7939]: sap-server: Operation not permitted (1)
Hint: Some lines were ellipsized, use -l to show in full.

私のコンピュータはSony VAIO SVF15A17CLVです。

出力は以下から来ます。rfkill list all

0: sony-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: sony-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

ありがとうございます！ ！