Display port to minidisplay

hbazzi98 · Jul 13, 2013

i have a gtx 660 ti with a display port adapter, is there any possible way for my imac to work as a display. i had a 6870 in the past with a mini display, honestly dont like nvidia right now because of this problem. someone help and make me like nvidia again@

manofchalk · Jul 13, 2013

If the iMac has a display input in the form of anything the 660Ti can output in then you should be good to use it as a screen.

You should be able to just buy any cheap DP to Mini-DP adapter, they are the exact same electrically they are just different sized connectors.
http://www.newegg.com/Product/Product.aspx?Item=N82E16812200602

hbazzi98 · Jul 13, 2013

i bought the same exact one, product did not work, was really disappointed.

manofchalk · Jul 13, 2013

Really?
Are you sure you didn't mistake a Thunderbolt port for a Displayport... port? They use the same interface, but are wired up differently.

EDIT:
It seems that you cant use an iMac to display another device unless its another Apple product.
http://support.apple.com/kb/ht3924

hbazzi98 · Jul 13, 2013

i disagree with the last part because i had a 6870 with a minidisplay port and i used mini display to mini display. but the gtx has no mini display. also the mid 2010 imac 27" has a mini display thunderbolt wasnt invented at the time

manofchalk · Jul 13, 2013

Hmm...
Reading through that page it does say at the end that

Converters not made by Apple may provide options to convert other electrical, video, and audio protocols to Mini DisplayPort or Thunderbolt compliant signals.

Which is I assume them begrudgingly saying that it is possible to exit the Apple Ecosystem there.

Do you have any other displays hooked up to your card, namely another two monitors using the HDMI/DVI ports? If you do, did you also have them hooked up when you were using the 6870?

hbazzi98 · Jul 13, 2013

nope just one hdmi connected to my TV. i should have gotten the 7950 because it has the minidisplay port. but the gtx 660 ti 3gb was on sale for 250 at the time.

manofchalk · Jul 13, 2013

In that case I dont know why it isn't working, I can only assume the cable is bust.

Try finding just a plain Mini-DP to DP adapter, then using the cable you already have.
Though looking at Newegg, it seems as if finding an adapter that simple is going to be impossible, everyone likes to convert it into HDMI or DVI instead, which isn't what you want.

Edit: Then as soon as I say that I find this.
http://www.newegg.com/Product/Product.aspx?Item=N82E16812999800

hbazzi98 · Jul 13, 2013

i have a display port on my 660 ti i want to connect it to my imac, that wont work because i dont have a minidisplay port on my 660 ti. is a minidisplay to display port the same as display port to mini display?

manofchalk · Jul 13, 2013

As far as I am aware, Mini-DP and DP are the exact same connector just given a different shape. There should be no difference.

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