从大约两年前开始，蓝牙在 Ubuntu 20.04 和 22.04 中运行良好，直到几天前，蓝牙无法启动。我不知道发生了什么。它是集成蓝牙。
输出如下lsusb：
Bus 001 Device 007: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for Bluetooth
因此我检查了输入sudo systemctl status bluetooth.service，输出如下：
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor pre>
Active: active (running) since Mon 2023-08-07 20:26:16 -05; 6min ago
Docs: man:bluetoothd(8)
Main PID: 1071 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 8852)
Memory: 1.8M
CPU: 166ms
CGroup: /system.slice/bluetooth.service
└─1071 /usr/lib/bluetooth/bluetoothd
ago 07 20:26:16 zhu-PCG02-GLE systemd[1]: Starting Bluetooth service...
ago 07 20:26:16 zhu-PCG02-GLE bluetoothd[1071]: Bluetooth daemon 5.64
ago 07 20:26:16 zhu-PCG02-GLE systemd[1]: Started Bluetooth service.
ago 07 20:26:16 zhu-PCG02-GLE bluetoothd[1071]: Starting SDP server
ago 07 20:26:16 zhu-PCG02-GLE bluetoothd[1071]: Bluetooth management interface 1.22 initialized
然后，我输入sudo dmesg|grep -i bluetooth，输出如下：
[ 13.508408] Bluetooth: Core ver 2.22
[ 13.508459] NET: Registered PF_BLUETOOTH protocol family
[ 13.508462] Bluetooth: HCI device and connection manager initialized
[ 13.508469] Bluetooth: HCI socket layer initialized
[ 13.508473] Bluetooth: L2CAP socket layer initialized
[ 13.508479] Bluetooth: SCO socket layer initialized
[ 17.598909] Bluetooth: hci0: sending initial HCI reset failed (-19)
[ 17.932872] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 17.932882] Bluetooth: BNEP filters: protocol multicast
[ 17.932889] Bluetooth: BNEP socket layer initialized
[ 19.797524] Bluetooth: hci0: sending initial HCI reset failed (-19)
[ 22.002137] Bluetooth: hci0: sending initial HCI reset failed (-19)
[ 24.213707] Bluetooth: hci0: sending initial HCI reset failed (-19)
[ so on... ]
有人有建议我吗？