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MX Anywhere 2 未在 XPS 13 (9360) 上的扫描中显示

tag-icon • tag-icon mouse bluetooth dell 17.04
MX Anywhere 2 未在 XPS 13 (9360) 上的扫描中显示

我在 XPS 13 (9360) 上尝试通过蓝牙配对 MX Anywhere 2，但鼠标甚至没有出现在扫描列表中。我可以验证蓝牙是否正常工作，因为我已经成功配对了蓝牙扬声器。鼠标确实出现在我的手机/Windows 机器上，但在我运行的 Ubuntu 17.04 上却没有出现。

$ lspci
3a:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)

$ rfkill list
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

$ uname -r
4.10.0-21-generic

我还尝试bluetoothctl在 MX Anywhere 2 闪烁时进行扫描，但仍然没有检测到鼠标。我让 XPS 双启动到 Windows 并在那里配对，当我重新启动到 Ubuntu 17.04 时，鼠标出现在蓝牙扫描列表中，但重新启动后会消失。在 Windows 和 Ubuntu 之间来回切换鼠标以让其显示在 Ubuntu 中，这很烦人。

有没有办法修复这个特定问题？看起来蓝牙驱动程序和鼠标都没有故障。

另外，这可能与司机有关吗？

$ service bluetooth status
bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2017-06-01 23:09:45 EDT; 19min ago
     Docs: man:bluetoothd(8)
 Main PID: 719 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/bluetooth.service
           └─719 /usr/lib/bluetooth/bluetoothd

Jun 01 23:09:45 xps-13 bluetoothd[719]: Bluetooth management interface 1.14 initialized
Jun 01 23:09:45 xps-13 bluetoothd[719]: Failed to obtain handles for "Service Changed" characteristic
Jun 01 23:09:45 xps-13 bluetoothd[719]: Sap driver initialization failed.
Jun 01 23:09:45 xps-13 bluetoothd[719]: sap-server: Operation not permitted (1)
Jun 01 23:09:45 xps-13 systemd[1]: Started Bluetooth service.
Jun 01 23:09:46 xps-13 bluetoothd[719]: Endpoint registered: sender=:1.29 path=/MediaEndpoint/A2DPSource
Jun 01 23:09:46 xps-13 bluetoothd[719]: Endpoint registered: sender=:1.29 path=/MediaEndpoint/A2DPSink
Jun 01 23:09:52 xps-13 bluetoothd[719]: Endpoint registered: sender=:1.58 path=/MediaEndpoint/A2DPSource
Jun 01 23:09:52 xps-13 bluetoothd[719]: Endpoint registered: sender=:1.58 path=/MediaEndpoint/A2DPSink
Jun 01 23:09:52 xps-13 bluetoothd[719]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: Address already in use (98)

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