Seeing Only Black Screen with Video API


When using the Vonage Video API, I cannot publish properly. I am seeing only a black screen for myself.

Applies To

  • Video API
  • Video Quality


  1. Restart your browser.
  2. Test another application (such as apprtc, skype, or photobooth) that requires the camera.
  3. Ensure that the proper device is selected when allowing the browser to access the camera.


This problem can occur when the user’s camera is broken or not installed correctly. Another possibility is that the incorrect device was selected when allowing the camera.

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