If you have multiple cameras connected to your computer, you can choose the camera you want to use within Forum.
Changing your selected camera
To change your camera source while in the Forum Classroom, click Audio and Video Preferences under the gear icon at the top right.
Select the camera source you would like to use, such as your built-in camera:
If you have an external webcam connected, you can also select that camera:
Troubleshooting connecting an external webcam
Try these troubleshooting tips if you're unable to connect to your camera.
If you're still having issues choosing an external webcam as your Selected Camera, even though the same webcam is being recognized in Selected Mic, then you can try the following:
sudo killall VDCAssistant
Enter your password
Change your selected camera. You should see your external webcam.