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无法使用 bluetoothctl 连接蓝牙 LE 键盘

tag-icon • tag-icon keyboard bluetooth bluez
无法使用 bluetoothctl 连接蓝牙 LE 键盘

我在联想 Thinkpad X1 Tablet gen 2 上运行 Ubuntu 20.04。我最近买了一个使用蓝牙 LE 的联想 Trackpoint Keyboard II。使用Stack Exchange 帖子，我能够让蓝牙 LE 键盘工作一次

sudo -i 
btmgmt power off
btmgmt discov on
btmgmt connectable on
btmgmt pairable on
btmgmt power on
bluetoothctl --agent KeyboardDisplay

进而

connect 00:11:22:33:44:55

但工作后我收到错误

Attempting to connect to 00:11:22:33:44:55
Failed to connect: org.bluez.Error.Failed le-connection-abort-by-local

的输出info 00:11:22:33:44:55 是

Device 00:11:22:33:44:55 (random)
    Name: TrackPoint Keyboard II
    Alias: TrackPoint Keyboard II
    Appearance: 0x03c1
    Icon: input-keyboard
    Paired: yes
    Trusted: yes
    Blocked: no
    Connected: no
    WakeAllowed: yes
    LegacyPairing: no
    UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
    UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
    UUID: Device Information        (0000180a-0000-1000-8000-00805f9b34fb)
    UUID: Battery Service           (0000180f-0000-1000-8000-00805f9b34fb)
    UUID: Human Interface Device    (00001812-0000-1000-8000-00805f9b34fb)
    Modalias: usb:v17EFp60E1d0047

systemctl status bluetooth给出

● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2023-09-19 15:38:20 EDT; 21h ago
       Docs: man:bluetoothd(8)
   Main PID: 108246 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 9096)
     Memory: 2.2M
        CPU: 1min 11.582s
     CGroup: /system.slice/bluetooth.service
             └─108246 /usr/lib/bluetooth/bluetoothd

Sep 19 15:38:20 hamm bluetoothd[108246]: Endpoint registered: sender=:1.3360 path=/MediaEndpoint/A2DPSource/sbc_xq_>
Sep 19 15:38:20 hamm bluetoothd[108246]: Endpoint registered: sender=:1.3360 path=/MediaEndpoint/A2DPSink/sbc_xq_552
Sep 19 15:38:20 hamm bluetoothd[108246]: Endpoint registered: sender=:1.3360 path=/MediaEndpoint/A2DPSource/sbc_xq_>
Sep 19 18:59:26 hamm bluetoothd[108246]: /org/bluez/hci0/dev_C8_7B_23_56_84_6A/fd0: fd(33) ready
Sep 19 20:20:03 hamm bluetoothd[108246]: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free V>
Sep 20 04:06:53 hamm bluetoothd[108246]: /org/bluez/hci0/dev_C8_7B_23_56_84_6A/sep1/fd1: fd(33) ready
Sep 20 11:21:06 hamm bluetoothd[108246]: /org/bluez/hci0/dev_C8_7B_23_56_84_6A/sep1/fd2: fd(33) ready
Sep 20 11:48:31 hamm bluetoothd[108246]: profiles/audio/avdtp.c:avdtp_parse_rej() SET_CONFIGURATION request rejecte>
Sep 20 11:48:31 hamm bluetoothd[108246]: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free V>
Sep 20 11:48:32 hamm bluetoothd[108246]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C>

我该怎么做才能诊断并纠正这个问题？

答案1

在网上搜索了一下，发现了这个arch linux 帖子 按照建议操作sudo bluetoothctl remove 00:11:22:33:44:55，然后通过标准系统蓝牙控件 (gui) 进行配对和连接。我这样做了，现在键盘已在两个不同的会话中工作。

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