5 Replies Latest reply: Jan 25, 2012 12:02 PM by Mr. Chris
Mr. Chris Level 1 (5 points)

I have two iMacs 11,1.  pre-thunderbolt.


I would like to hook one up in target display mode.  to do that should be a simple male to male cable and command+f2. 


At the apple stores, I only found a thunderbolt cable.  Same size, dimension and shape of a mini displayport cable.  I asked the associate, and he assured me it was the same as a mini displayport cable.


However, upon testing, I am unable to flip the second iMac into display mode, and I am wondering if it because I am using a thunderbolt cable between 2 pre-thunderbolt machines. 


If the cable is correct, why am I unable to switch one to external display?