View Full Version : Using a 2009 27" iMac as external monitor with a 2011 Air

Aug 5, 2011, 08:47 AM
Apologies if this information or question is elsewhere but I can't seem to find an answer.

My question is can I use my mini DisplayPort equipped 27" iMac as a monitor with my 2011 13" Air?

If so what kind of cable will I need? thunderbolt to miniDisplayPort or just a mini DisplayPort to mini Displayport cable.

thanks in advance.

Aug 5, 2011, 09:17 AM
bump for exact same question

Aug 5, 2011, 09:31 AM


Aug 5, 2011, 09:35 AM
Should be mini-display port to mini-displayport. You only need a Thunderbolt cable if you are hooking up a Thunderbolt accessory or display.

Aug 5, 2011, 10:09 AM
In this video (http://www.youtube.com/watch?v=8bVOssjlsGY)the guy says that the cable has to be a thunderbolt cable but crucially speaks way too fast when talking about if the iMac has a mini display port.

Aug 5, 2011, 10:57 AM
So I just called apple tech support and they confirmed it needs to be a thunderbolt cable (or a mini display port - thunderbolt cable, which i don't think exist).

Pretty disappointed mini display port to a mini display port doesn't work.

Aug 5, 2011, 11:45 AM
Your computers should be networked together. Instead of using a cable why not just use "Screen Sharing"?

Sep 2, 2011, 02:12 AM
FYI I tried this setup with a TB cable and it didn't work. I think it needs to be MDP - MDP.

Sep 2, 2011, 02:16 AM
Well that blows... I have a 27" iMac and recently picked up a MBA. I was going to try hooking the MBA to the iMac this weekend!