I am using a Vivitar DVR 757HD camera which can work as a webcam. So far, I have been able to get it to work with Zoom, discord, and an online webcam test; however, even though OBS detects the webcam and shows it as an option for video capture devices, when selected, it shows only a black screen. There haven't been any other places I've been able to test but so far OBS is the only one that won't work. I've been scouring all over the web to try and find solutions but there aren't many helpful sources for my model of camera and nothing so far has worked: the device isn't being shared between different scenes or video capture sources, I've tried changing which USB port the camera is plugged into, I am not using a USB hub, I've tried uninstalling and reinstalling OBS, the drivers for the camera are up to date, I've deactivated and reactivated the source multiple times, and I've restarted my computer multiple times. Nothing has worked. If there's anything new to suggest trying I'm all ears. Last bits of relevant information are that I don't have an SD card for the camera and, according to some third party software, the date on the camera's driver is 6/21/2006.