Greetings larceny 69,
Thank you for using Apple Support Communities. It seems like you want to use FaceTime, but the video is not working. Is this happening with only one person you are calling or multiple? I would recommend you read these articles, they may be able to help troubleshoot the issue.
FaceTime for Mac: Troubleshooting FaceTime - Apple Support
Get help if you can't make or receive FaceTime calls - Apple Support
If your cellular connection or Wi-Fi network are running slow, or other users are streaming audio or video on the same Wi-Fi network, you might have these issues:
- Connection alerts or unable to connect
- Choppy video calls
- Black screen
- Dropped calls
Make sure that both you and the person that you're calling are using a fast Wi-Fi or cellular connection. If you’re using Wi-Fi, FaceTime requires a broadband connection.
Take care