我遇到了 USB 蓝牙适配器问题。相关信息：
nikita@nikita-desktop:~$ rfkill list
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
nikita@nikita-desktop:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 045e:07f8 Microsoft Corp. Wired Keyboard 600 (model 1576)
Bus 001 Device 006: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 005: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 003: ID 1b3f:2247 Generalplus Technology Inc. GENERAL WEBCAM
Bus 001 Device 002: ID 045e:00cb Microsoft Corp. Basic Optical Mouse v2.0
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
nikita@nikita-desktop:~$ lsmod | grep btusb
btusb 61440 0
btrtl 24576 1 btusb
btbcm 20480 1 btusb
btintel 32768 1 btusb
bluetooth 651264 12 btrtl,btintel,btbcm,bnep,btusb
nikita@nikita-desktop:~$ bluetoothctl list
nikita@nikita-desktop:~$ systemctl status bluetooth.service
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enable>
Active: active (running) since Sun 2022-04-17 16:57:17 EEST; 37min ago
Docs: man:bluetoothd(8)
Main PID: 3712 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 9012)
Memory: 508.0K
CGroup: /system.slice/bluetooth.service
└─3712 /usr/lib/bluetooth/bluetoothd
апр 17 16:57:17 nikita-desktop systemd[1]: Starting Bluetooth service...
апр 17 16:57:17 nikita-desktop bluetoothd[3712]: Bluetooth daemon 5.53
апр 17 16:57:17 nikita-desktop systemd[1]: Started Bluetooth service.
апр 17 16:57:17 nikita-desktop bluetoothd[3712]: Starting SDP server
апр 17 16:57:17 nikita-desktop bluetoothd[3712]: Bluetooth management interface 1.20 initi>
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我的内核版本：5.17.5。在 Windows 11 上蓝牙工作得很好
更新：
nikita@nikita-desktop:~$ sudo dmesg | grep -i blue
[sudo] пароль для nikita:
[ 2.940237] Bluetooth: Core ver 2.22
[ 2.940259] NET: Registered PF_BLUETOOTH protocol family
[ 2.940260] Bluetooth: HCI device and connection manager initialized
[ 2.940263] Bluetooth: HCI socket layer initialized
[ 2.940264] Bluetooth: L2CAP socket layer initialized
[ 2.940267] Bluetooth: SCO socket layer initialized
[ 3.024145] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 3.847334] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.847337] Bluetooth: BNEP filters: protocol multicast
[ 3.847339] Bluetooth: BNEP socket layer initialized
[ 8.231573] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 10.246870] Bluetooth: hci0: Opcode 0x c03 failed: -110