Our Dell monitor has a built-in webcam. Till yesterday, it was working fine and we were using it for chatting. However, today we find that when we switch on the webcam, the monitor LED indicating that webcam is on lights up and the window for webcam video opens, but the screen is blank in the window.
The only change event has been that we installed an Epson All-in-One using another USB port. Monitor was not touched and not supposed to be affected.
I tried searching the settings, but could not notice anything in the settings that appeared as if we could change to make it work.