Resolved Retina MBP using iMac as External Display not working

[mackry]

I have my Retina MBP connected via Thunderbolt cable from Apple to a 2011 iMac with Thunderbolt ports. Both machines are on. When I press CMD + F2 on the iMac to change the Target Display Mode, nothing works. I've tried restarting both machines – nada.

Any ideas?

 

[mackry]

Bump'r.

 

[mackry]

Bump, hope I'm not offending anyone...

 

[Aksta]

are u sure its a thunderbolt cable?

If so, reset the SMC

 

[mackry]

Yes, ordered it from Apple.

I tried the instructions here to reset the SMC but this did not work.

 

[mackry]

Has anyone tried this with the new rMBP? This is driving me nuts!

 

[brand]

Bump'r.

Bump, hope I'm not offending anyone...

Offending No, breaking the rules yes.

8. Bumps. Posts that bring a thread to the top of the New Posts list but add no content to the thread (bumps) are not permitted. This applies not only to posts that say "bump" but to those with the intent to bump, e.g. posts saying "anyone?" or the equivalent. See why and how to avoid bumping.

 

[mackry]

Discovered the issue. The option "Use all F1, F2, etc. keys as standard function keys" in System Preferences > Keyboard must be unchecked.

 

[tfannon]

how has your experience been with this? i just picked up a thunderbolt cable today. i find that when the rMBP puts the display to sleep, it seems to lose the connection to the Target Display. Are you finding this?

 

[Drask]

how has your experience been with this? i just picked up a thunderbolt cable today. i find that when the rMBP puts the display to sleep, it seems to lose the connection to the Target Display. Are you finding this?

Yup same, and you cant use you under bootcamp, which I find pretty stupid.