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未检测到蓝牙适配器/控制器。Blueman-manager 未打开

tag-icon • tag-icon drivers usb 20.04 bluetooth
未检测到蓝牙适配器/控制器。Blueman-manager 未打开

我想将我的蓝牙耳机连接到 Ubuntu 20.04。它在 lsusb 中显示，但在 bluetoothctl 中未显示。我做错了什么？systemctl 蓝牙状态正在运行。

在 HCI 模式下，我可以看到它

Bus 003 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

 sudo bluetoothctl
Agent registered
[bluetooth]# show
No default controller available



service bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2020-11-03 13:02:57 IST; 16min ago
       Docs: man:bluetoothd(8)
   Main PID: 2456 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 19029)
     Memory: 1.1M
     CGroup: /system.slice/bluetooth.service
             └─2456 /usr/lib/bluetooth/bluetoothd

Nov 03 13:02:57 akshay-System-Product-Name systemd[1]: Starting Bluetooth service...
Nov 03 13:02:57 akshay-System-Product-Name bluetoothd[2456]: Bluetooth daemon 5.53
Nov 03 13:02:57 akshay-System-Product-Name systemd[1]: Started Bluetooth service.
Nov 03 13:02:57 akshay-System-Product-Name bluetoothd[2456]: Starting SDP server
Nov 03 13:02:57 akshay-System-Product-Name bluetoothd[2456]: Bluetooth management interface 1.14 initialized

和

blueman-manager
blueman-manager version 2.1.2 starting
blueman-manager 13.20.20 ERROR    Manager:118 on_dbus_name_appeared: Default adapter not found, trying first available.
blueman-manager 13.20.20 ERROR    Manager:122 on_dbus_name_appeared: No adapter(s) found, exiting

它是一个 usb5.0 蓝牙适配器。

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