笔记本电脑型号：。我的 HP 250 G4 笔记本电脑上的蓝牙可以正常工作，但检测不到任何设备。我尝试了以下步骤这个帖子，但没有效果。
结果systemctl | grep -i blue：
sys-devices-pci0000:00-0000:00:14.0-usb1-1\x2d4-1\x2d4:1.0-bluetooth-hci0.device 已加载 活动 插入
/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/bluetooth/hci0
sys-subsystem-bluetooth-devices-hci0.device
已加载 活动 插入 /sys/subsystem/bluetooth/devices/hci0
bluetooth.service
已加载 活动 运行蓝牙服务
bluetooth.target
已加载 活动 活动蓝牙
结果dmesg | grep -i blue：
[ 19.734675] Bluetooth: Core ver 2.22
[ 19.734721] Bluetooth: HCI device and connection manager initialized
[ 19.734730] Bluetooth: HCI socket layer initialized
[ 19.734735] Bluetooth: L2CAP socket layer initialized
[ 19.734745] Bluetooth: SCO socket layer initialized
[ 20.278547] Bluetooth: hci0: BCM: chip id 70
[ 20.279542] Bluetooth: hci0: BCM: features 0x06
[ 20.295596] Bluetooth: hci0: frodo
[ 20.295605] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[ 20.426538] Bluetooth: hci0: BCM: firmware Patch file not found
[ 20.426550] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-0a5c-216d.hcd'
[ 20.426556] Bluetooth: hci0: BCM: 'brcm/BCM-0a5c-216d.hcd'
[ 22.444638] Bluetooth: hci0: command 0x1003 tx timeout
[ 22.445616] Bluetooth: hci0: unexpected event for opcode 0x1003
[ 36.457400] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 36.457407] Bluetooth: BNEP filters: protocol multicast
[ 36.457420] Bluetooth: BNEP socket layer initialized
[ 38.924867] Bluetooth: hci0: command 0x1001 tx timeout
[ 38.925773] Bluetooth: hci0: unexpected event for opcode 0x1001
[ 53.284251] Bluetooth: RFCOMM TTY layer initialized
[ 53.284259] Bluetooth: RFCOMM socket layer initialized
[ 53.284267] Bluetooth: RFCOMM ver 1.11
答案1
对于其他可能遇到同样问题的人，我找到了以下驱动程序https://devid.info/ru/68560，通过搜索我的笔记本电脑型号，然后我按照@Pilot6 在他的回答中提到的帖子的说明进行操作：蓝牙 Broadcom 43142 无法正常工作