Linux: Manjaro 升级内核后 蓝牙硬件无法使用的问题 hci0 command timeout

前言

前几天用过 yay -Syyu 升级了待更新的包之后，内核更新到 6.1.67-2-MANJARO,蓝牙就不可用了,于是乎求助于ArchLinux论坛终于得到解决，如果您出现以下情况可用尝试使用相关命令解决。

发现问题

首先通过命令 sudo dmesg | grep Bluetooth 发下有以下错误(hci0)

$ sudo dmesg | grep Bluetooth
[   80.360347] Bluetooth: hci0: command 0x2042 tx timeout
[   80.360358] Bluetooth: hci0: Opcode 0x2042 failed: -110
[   80.360368] Bluetooth: hci0: Unable to disable scanning: -110
[   80.360371] Bluetooth: hci0: disable scanning failed: -110
[   80.360373] Bluetooth: hci0: start background scanning failed: -110
[  118.120569] Bluetooth: hci0: command 0x2042 tx timeout
[  118.120568] Bluetooth: hci0: Opcode 0x2042 failed: -110
[  118.120579] Bluetooth: hci0: Unable to disable scanning: -110
[  118.120582] Bluetooth: hci0: disable scanning failed: -110
[  118.120584] Bluetooth: hci0: start background scanning failed: -110
[  120.253928] Bluetooth: hci0: command 0x2042 tx timeout
[  120.253972] Bluetooth: hci0: Opcode 0x2042 failed: -110
[  120.253978] Bluetooth: hci0: Unable to disable scanning: -110
[  120.253981] Bluetooth: hci0: stop background scanning failed: -110
[  125.373672] Bluetooth: hci0: command 0x2042 tx timeout
[  125.373672] Bluetooth: hci0: Opcode 0x2042 failed: -110
[  125.373681] Bluetooth: hci0: Unable to disable scanning: -110
[  125.373684] Bluetooth: hci0: Unable to disable scanning: -110
[  127.507018] Bluetooth: hci0: Opcode 0x2042 failed: -110

解决方法

可用通过使用以下命令进行解决

sudo rmmod btusb
sudo modprobe btusb