Currently Being ModeratedMar 7, 2012 5:50 PM (in response to brantly)
According to the specs I found a 2009 IMac has a mini-displayport, not mini-DVI. So you should be able to just use a mDP-to-mDP cable with no adapters.
Note, it's not clear whether target display mode works with the smaller 2009's. Maybe not since that apple doc singles out just the 27".
Currently Being ModeratedMar 7, 2012 7:25 PM (in response to X423424X)
It definitely is mini DVI. I saw that post you referenced and it made me think I had a solution at first but agree that maybe the disconnect is probably that the 27” model is different than mine (which is 24”). Hence my post!
Currently Being ModeratedMar 7, 2012 7:50 PM (in response to brantly)
Then I guess it is not a 2009 imac. It's a 2008 imac. And I don't think you can use that in target display mode.
Currently Being ModeratedMar 7, 2012 8:00 PM (in response to X423424X)
Thought is was purchased in 2009 but could be the case that it was a 2008 model potentially. Or also that post is referring specifically to 27” models so it may be that the 24” models were different than the 27” ones.
Will be bummed if I cannot use the iMac as a target display as I had hoped I could do! Has anyone gotten that to work??
Currently Being ModeratedMar 7, 2012 8:11 PM (in response to X423424X)
The Early 2009 only supports output:
only the Late 2009 and 2010 27" models support input from an external DisplayPort sources:iMac, Mac Mini, iPad, iPods, Mac OS X (10.6.8), (10.7.3) Safari, iTunes, iPhoto
Currently Being ModeratedMar 7, 2012 8:25 PM (in response to den.thed)
Thanks for the response but not quite bingo. Neither of those you listed is my system. I have the documentation that came with the iMac and it lists that it has a ”mini DVI” port, not a mini display port like both options you posted do. And I confirmed that it is mini DVI on the system itself before posting here (found online images of the various types of ports to confirm what I have).
Seems to support that maybe my system is a 2008. Sorry if I threw things off by even mentioning a year (I thought it was 2009!). In any case my question still stands - can you connect from a macbook pro (with mini display port or thunderbolt) to an iMac with mini DVI? Has anyone made that work? If so via what intermediary since it appears from my research that there is no way to directly connect the two and therefore I think you need to go to VGA or HDMI or something between the two systems?
Currently Being ModeratedMar 7, 2012 9:06 PM (in response to brantly)
As I said you cannot do this with a 2008 imac.
And why all this guessing back and forth about the machine? Click the Apple menu, About This mac, More Info... to open the System Profiler, and just click Hardware on the left pane to see what machine you have in the right pane (Model Identifier).
Currently Being ModeratedMar 7, 2012 9:37 PM (in response to brantly)
Currently Being ModeratedMar 8, 2012 10:50 AM (in response to brantly)
Bummer that cannot be handled via simple cables/adapters but I was afraid that might be the case. Thanks for the tip on ScreenRecycler. Looks like that might be my solution. Will try it out!
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