更新后蓝牙不能用

Question

我对 ubuntu 很陌生，慢慢地了解它，但我似乎经常遇到蓝牙连接问题。它一直运行良好，直到我完成了建议的更新，现在我无法连接到蓝牙扬声器。

我跑了sudo service bluetooth status：

 ? bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
   Active: active (running) since Thu 2018-01-11 23:33:41 GMT; 13min ago
     Docs: man:bluetoothd(8)
 Main PID: 4236 (bluetoothd)
   Status: "Running"
   CGroup: /system.slice/bluetooth.service
           ??4236 /usr/lib/bluetooth/bluetoothd
bluetoothd[4236]: Not enough free handles to
bluetoothd[4236]: Sap driver initialization 
bluetoothd[4236]: sap-server: Operation not 
bluetoothd[4236]: Endpoint registered: sende
bluetoothd[4236]: Endpoint registered: sende
bluetoothd[4236]: connect error: Permission 
bluetoothd[4236]: connect error: Too many le
bluetoothd[4236]: connect error: Permission 
bluetoothd[4236]: GLib: Source ID 158 was no
bluetoothd[4236]: connect error: Permission 
lines 1-19/19 (END)

知道该怎么做吗？Sap 驱动程序或 RFCOMM 服务器似乎是一个问题，那些是什么？道歉对 linux 来说还是很新的