本人使用荣耀MagicBook，自带Deepin15操作系统，但是发现无法使用笔记本内置的摄像头。通过命令行安装了cheese软件也检测不到摄像头，通过网页的摄像头检测程序（https://exam.nowcoder.com/test/video）也检测不到摄像头。通过参考过往的论坛帖子（https://bbs.deepin.org/post/153515），使用命令sudo apt-get install camorama安装之后可以短暂让网页版本的摄像头检测程序调用摄像头，但是在使用camorama的摄像头查看程序的时候，却得到了/dev/video0找不到的错误。本人在查看文件夹/dev下面，也没有video开头的设备文件。通过查看dmesg，得到如下和uvcvideo有关的错误系统日志信息：

[    2.846446] videodev: Linux video capture interface: v2.00
[    2.861705] uvcvideo: Found UVC 1.50 device ov9734_azurewave_camera (13d3:56db)
[    2.868282] uvcvideo: Failed to initialize entity for entity 6
[    2.868283] uvcvideo: Failed to register entities (-22).
[    2.868339] input: ov9734_azurewave_camera: ov9734 as /devices/pci0000:00/0000:00:08.1/0000:03:00.3/usb1/1-4/1-4.2/1-4.2:1.0/input/input8
[    2.868395] usbcore: registered new interface driver uvcvideo
[    2.868396] USB Video Class driver (1.1.1)
[    3.024037] Adding 10485756k swap on /dev/nvme0n1p2.  Priority:-2 extents:1 across:10485756k SSFS
[    3.040329] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    3.040488] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    3.041107] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    3.041109] cfg80211: failed to load regulatory.db