No Desktop Video Device Detected

If the message ‘No Desktop Video Device Detected’ appears when trying to use one of Blackmagic’s I/O boxes, have no fear! Simply follow the steps below and you’ll be back in business in no time.

1. Open up System Preferences > Security & Privacy > General.

2. Select App Store and identified developers” and then “Allow” Blackmagic Design in the pop-up window.

3. After clicking the lock, your hardware should be displayed on Desktop Video Setup. If not, try restarting computer.

4 thoughts on “No Desktop Video Device Detected”

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Katherine says:

May 7, 2021 at 7:58 pm

Thank you so much! I love you!

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1. jonpais says:
  
  May 7, 2021 at 11:36 pm
  
  Glad I could help.
  
  Reply
Eric says:

September 14, 2021 at 5:43 pm

I do not get the warning that some system software was blocked. i don’t have the option of checking that box. Any other options?

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1. jonpais says:
  
  September 14, 2021 at 5:51 pm
  
  Try downloading Desktop Video from the Balckmagic website (support page), uninstall previous Desktop Video and install new one.
  
  Reply