升级Ubuntu 22.04后联想Legion 5内置Chicony摄像头无法识别的求助

大家好，我把联想Legion 5升级到Ubuntu 22.04之后，内置摄像头突然没法用了——打开Cheese直接提示No device found。我翻了好几个论坛的帖子试了各种办法，都没解决问题，实在没办法来求助大家了。

我先查了USB设备列表，执行lsusb的输出如下：

Bus 001 Device 004: ID 048d:c100 Integrated Technology Express, Inc. ITE Device(8910)

Bus 001 Device 003: ID 048d:c955 Integrated Technology Express, Inc. ITE Device(8295)

Bus 001 Device 005: ID 8087:0026 Intel Corp. AX201 Bluetooth

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

然后我查看了内核日志里的摄像头相关信息，执行sudo dmesg | grep -i camera的结果：

[    2.370159] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[    2.373908] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input8

[   23.351703] usb 1-6: Product: Integrated Camera

[   23.354370] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[   23.358045] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input28

[   39.224749] usb 1-6: Product: Integrated Camera

[   39.228352] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[   39.234084] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input29

[ 1897.536700] usb 1-6: Product: Integrated Camera

[ 1897.539238] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 1897.542602] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input30

[ 1938.328692] usb 1-6: Product: Integrated Camera

[ 1938.332214] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 1938.336050] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input31

[ 2070.684482] usb 1-6: Product: Integrated Camera

[ 2070.687167] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 2070.690612] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input32

[ 3044.293355] usb 1-6: Product: Integrated Camera

[ 3044.295929] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 3044.299579] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input33

[ 3102.341026] usb 1-6: Product: Integrated Camera

[ 3102.343771] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 3102.347361] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input34

[ 4186.488517] usb 1-6: Product: Integrated Camera

[ 4186.493744] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 4186.499515] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input35

[ 4187.547467] usb 1-6: Product: Integrated Camera

[ 4187.550096] usb 1-6: Found UVC 1.10 device Integrated Camera (04f2:b6c2)

[ 4187.553947] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input36

最后检查了相关内核模块，lsmod|grep uvcvideo的输出：

videobuf2_vmalloc      20480  1 uvcvideo

videobuf2_v4l2         32768  1 uvcvideo

videobuf2_common       77824  4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops

videodev              258048  7 videobuf2_v4l2,v4l2loopback,uvcvideo,videobuf2_common

mc                     65536  4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common

有没有大佬能给点解决思路？万分感谢！

备注：内容来源于stack exchange，提问作者erk