Two external webcam not working simultaneously on latop with external monitor

[Najib]

I am using two webcams and connected a secondary display to laptop for the exam. when I did a compatibility check one cam is passed 2nd cam showed only a black screen. so it is not possible to run two external webcam simultaneously in exam connected to laptop. We have to use one laptop inbuilt cam and one external webcam.

[Melo]

Only one external camera is required for the exam.
There is no need to connect a second external camera or use the laptop camera if you use the external monitor instead of the laptop monitor