DisplayPort over Thunderbolt

[marzomac]

Is it possible to use a Thunderbolt cable to carry a Display Port signal to an iMac that doesn't have thunderbolt?

eg. connect rMBP to 2010 iMac 27" using thunderbolt cable.

Thanks in advance.

 

[Aldaris]

I imagine it would work since it is using the same tech anyway. I use my thunderbolt to mini display port adapter to hook up to an old Apple Cinema Display (20" Acrylic). It's the same signal either way (without data but video is being sent).

 

[iSayuSay]

Each Thunderbolt signal carries DisplayPort + PCIexpress. If you have Thunderbolt display, it will be able to separate video signal from DP and data fron PCIex.

Now if you have monitor only with DisplayPort input, such as ACD or 2009/10 27" iMac then it will run just fine. But data signal will be ignored. Press cmd F2 on your iMac under osx to switch to target display mode.