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yeah mini display port to vga doesn't work and mini dvi to vga doesn't work...

I am having the same issue. Either display port on my mac mini when used with an adapter to convert to VGA is subsequently not recognized by Windows 7 running on bootcamp. in my thorough searching through the internet today, i've heard one plausible reason. well more of a workaround than a reason...to somehow not use any sort of adapter. which means if you have a monitor with VGA only, you're stuck.

but for me it's the dual monitor functionality that is not working in windows 7. I was able to get my primary monitor to run with VGA because it had both DVI and VGA inputs. but it could only have a maximum of 800x600 res. weird thing is everything works perfectly on the Mac OS side.
 
figured out a fix...

well i figured it out... it seems that windows 7 was detecting the display driver as just a generic driver. There was no Nvidia control panel or evidence of an nvidia driver being installed, despite there obviously being a GeForce 320M graphics card in the Mac mini. So after some digging, I found a nifty way to make it work by following the instructions here:

https://forums.macrumors.com/threads/850809/

if you're running boot camp with windows 7 on a Mac mini or a MacBook and are having display issues of any kind, I suggest trying this out.

cheers :)
 
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