这个问题似乎很常见，但我尝试了之前问题中提出的所有解决方案，但没有成功。我的蓝牙只是不断搜索设备而无法检测到它们。
输出rfkill list：
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
输出dmesg | grep Blue：
[ 1.725292] usb 2-4: Product: Bluetooth Radio
[ 22.987302] Bluetooth: Core ver 2.22
[ 22.987324] Bluetooth: HCI device and connection manager initialized
[ 22.987326] Bluetooth: HCI socket layer initialized
[ 22.987328] Bluetooth: L2CAP socket layer initialized
[ 22.987331] Bluetooth: SCO socket layer initialized
[ 24.192938] Bluetooth: hci0: rtl: examining hci_ver=06 …