USB Capture Device Detected as Extended Display

ChiefChirpa

New Member
Hi,

I have purchased a USB capture device with the intention of being able to record video on a MacBook before login (boot-up screen, activation, setup wiard etc). On boot-up, the USB device is being detected as an extended display on the MacBook. The problem is that OBS is displaying the 'extended' instead of the main display, so all I can see is an empty desktop screen.

Anyone have any ideas how I can configure OBS to capture the main display?
 
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