Q: Using Late 2009 Imac as external display for PC with display port 1.2

Check out > Use your iMac as a display with Target Display Mode - Apple Support

The way I read the article, Target Display Mode only supports a Mac to iMac connection.

I read the same thing. You can't connect a Windows/Linux box to a Mac to use as a display.

Sometimes to only way to find out for sure, is to be the guinea pig.

I'm sticking with won't work.

Lucky you I entered this page,

I have a pc with gtx 970 and an old imac 27 2009

Now im typing this message using imac 27 inch 2009 Late monitor

I orderd minidisplayport to display port from amazon and it worked, I simply plugged the display port to my GTX 970, And in imac I pressed command + F2 and voalla, windows 10 appeard and it looked very awesome in imac monitor without any problems within 2k resolution, also you can return back to OS X by pressing command + F2 again

and I got a little surprise for you, iMac speakers works too in windows 10

This should  work my friend

LongSlenderBody wrote:

 

Ok, so, $30 later: It works.

 

You know what doesn't work though?  My Macbook pro retina as source for TDM into the iMac.  Just sit and let that sink in for a moment.

Why not? It should.

Hi Msh3lany

Can you please tell us if it's DisplayPort 1.2 cable our just 1.1 ou 1.1a ?

Or maybe juste could you give us the amazon link ?

I tried a generic cable (probably a mere 1.1, but no proof ) and this doesn't work

Thanks !

Here you go

https://www.amazon.com/gp/aw/d/B00C7RJQPY/ref=yo_ii_img?ie=UTF8&psc=1