Using my macbook air as an external display to PC

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Hello all I've looked online but haven't found much on this, if anyone could shed some light into this I'd really appreciate it.

I have a video card in my Windows PC that supports multiple displays, but my desk area only has enough room for a single monitor. So I was thinking when necessary, why not use my macbook air as a second monitor while propped up on the table area. My graphics card, FirePro V3800, has both a display port and DVI. So I'd hook up a DVI cable to my monitor, and the display port cable via thunderbolt to the macbook air (its the 2011 one BTW). I'd have to turn on the macbook air I'd assume because there no way the display port would draw power to the macbook air. Anyway my question is would this work? Thanks.
 

chscag

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2017 27" iMac, 10.5" iPad Pro, iPhone 8, iPhone 11, iPhone 12 Mini, Numerous iPods, Monterey
It won't work because your MBA only has a video output port (thunderbolt) and not one for video input. Only the 27" iMac has both an input and output video port.
 
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It won't work because your MBA only has a video output port (thunderbolt) and not one for video input. Only the 27" iMac has both an input and output video port.

Thats too bad, thanks for the response and explanation.
 

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