Target Display Mode Problems with MacBook's

[Kohnj]

Hey everyone having issues with using my 2011 imac as a display for my 2012 MacBook Air and 2011 Macbook Pro. Tried to connect both via thunderbolt cable and the imac wont enter target display mode. I read that when you connect a thunderbolt device to an imac it should automatically enter target display mode, when that didnt work I tried command + F2 and that did not work either. The imac recognizes the macbooks under the system information tab so i know that the thunderbolt cable is working. Does anyone have any suggestions on how to get target display mode to work??? Thanks Justin

 

[GGJstudios]

OS X Lion: Use another Mac as a display
iMac (Mid 2011): Target Display Mode does not work with Mini DisplayPort cable

 

[Kohnj]

Thank you for the quick reply but neither of these links solve my problem, if you would take your time to read my post you would have learned that I already tried the instructions on the first link and i am using a thunderbolt cable to connect two thunderbolt equipped macs. Does anyone else know of a solution to the problem i am having?

Thanks

 

[JootecFromMars]

Do yo have the 21.5" or the 27"?

I think target display only works on the 27".

 

[Kohnj]

I have a 27 inch imac.

 

[GGJstudios]

Do yo have the 21.5" or the 27"?

I think target display only works on the 27".

From the 2nd link I posted:

iMac (21.5-inch, Mid 2011) and iMac (27-inch, Mid 2011) support Target Display Mode via Thunderbolt to Thunderbolt cable (2 m) when the source is another Thunderbolt-equipped computer.