Laptop: Dell XPS 13 9380

Some times integrated camera works, some times it doesn't work.

Use case: The laptop is connected to the Dell docking station with 2 screens, and it is closed. I disconnect it from the docking station, open it, go to Skype > Settings > Audio & Video, and the camera is either working or not.

When the camera works fine, it is detected as "Integrated webcam" > https://prnt.sc/pznj3i

When the camera doesn't work, it is detected as "Sonix Technology" > https://prnt.sc/pznj9f (same driver's version).

https://prnt.sc/pznjok
VID_0C45&PID_6723 for Integrated Webcam
VID_0C45&PID_6365 for Sonix

All drivers including BIOS were updated.

Tried disabling, restarting and enabling the camera in BIOS > https://prnt.sc/pznmj7
Helped, but after a couple of hours - same problem - black screen, not working.

Did some tests in BIOS > https://photos.app.goo.gl/jrcsEMv6aT4gbeQW9

Any help would be much appreciated.