网络摄像头在 Dell Latitude 7400 和 Ubuntu 20.04 上无法使用

Question

我在 Dell Latitude 7400 上安装了 Ubuntu 20.04 LTS。
集成网络摄像头不工作。
我能做些什么来解决这个问题？

lsusb -v 输出：

Bus 001 Device 002: ID 0bda:5538 Realtek Semiconductor Corp. Integrated_Webcam_HD
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.01
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0bda Realtek Semiconductor Corp.
  idProduct          0x5538 
...

dmesg 输出：

~$ dmesg | grep uvcvideo
[   16.263344] uvcvideo: Found UVC 1.00 device Integrated_Webcam_HD (0bda:5538)
[   16.272214] uvcvideo 1-6:1.0: Entity type for entity Realtek Extended Controls Unit was not initialized!
[   16.272215] uvcvideo 1-6:1.0: Entity type for entity Extension 4 was not initialized!
[   16.272216] uvcvideo 1-6:1.0: Entity type for entity Extension 7 was not initialized!
[   16.272217] uvcvideo 1-6:1.0: Entity type for entity Processing 2 was not initialized!
[   16.272218] uvcvideo 1-6:1.0: Entity type for entity Camera 1 was not initialized!
[   16.305653] usbcore: registered new interface driver uvcvideo