PC Master Race

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Can I use a spare laptop as secondary screen with an Elgato/HDMI USB capture card? (self.pcmasterrace)

submitted 1 year ago by coolfission to c/pcmasterrace

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I know laptops don't have HDMI In ports but I was thinking I can buy an Elgato USB adapter or some HDMI capture card to act as a monitor with OBS.

I've seen videos of ppl recording gameplay using the capture card but is it possible to extend my laptop display as well with the adapter?

Right now I'm using the Windows wireless display feature and it works well but there's still a bit too much latency and it times out whenever I alt+tab windows so I'd prefer a wired solution.

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[–] coolfission 2 points 1 year ago

Update: I bought the Elgato Cam Link 4k because I also needed it for recording my old VHS tapes and honestly it's not that bad as you say. I'm able to confirm that I can extend the display and use it as a second monitor with OBS. I just use the "Video Capture Device" setting and set the input to the Cam Link 4k and change the display to 1080p 60hz from Windows Setting.

The delay is only a couple of milliseconds so it's perfectly acceptable for office work. It's well worth it for me for the portability since now I can just take my two laptops and use my personal laptop for other purposes. And I was able to get the adapter for only $80 so it's not that expensive.