3 Replies Latest reply: Jun 30, 2013 8:25 PM by BDAqua
jlego Level 1 Level 1 (0 points)

I have a 2011 27in iMac. It has 2 thunderbolt ports with the lightning-bolt symbols.

I have a new Macbook Pro (2012/2013?) just purchased last December. It also has 2 thunderbolt ports.

I have male-to-male thunderbolt cable.

I also have a full wired apple keyboard.

I have connected the Macbook Pro to the iMac with the thunderbolt cable in order to use the iMac as an external display.(The Macbook Pro is my work machine)


No matter what, the iMac will not go into Target Display Mode. Everything I've read says that these 2 machines should be compatible for this purpose, but it just doesn't seem to work. Not cmd+F2, not cmd+fn+F2.


Specs on both machines:


2011 27in iMac:

OS X 10.6.8

3.4 GHz Intel Core i7



2013 Macbook Pro Retina:

OS X 10.8.3

2.6 GHz Intel Core i7


iMac, Mac OS X (10.6.8)