Kat Media

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Q: HD Cinema Display won't work with Imac 5k?

Hi There,

I can't seem to figure out why my HD cinema display won't connect as a third monitor to my iMac 5k.

The setup (DVI-Thunderbolt) does work on the old Mac book Pro, so nothing wrong with the display itself.

Anyone out there who knows what the solution might be?

Thanks

iMac with Retina 5K display, OS X Yosemite (10.10.5)

Posted on Oct 25, 2015 10:03 AM

I have this question too

Q: HD Cinema Display won't work with Imac 5k?

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by Malcolm J. Rayfield,

Malcolm J. Rayfield Oct 25, 2015 8:44 PM in response to Kat Media
Level 5 (7,945 points)

Oct 25, 2015 8:44 PM in response to Kat Media

When did you get your 27" iMac 5K? Only the late 2015 version supports more than one external display.
https://support.apple.com/specs/imac
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by Kat Media,

Kat Media Oct 26, 2015 2:12 AM in response to Malcolm J. Rayfield
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Oct 26, 2015 2:12 AM in response to Malcolm J. Rayfield

Mmm..it's an early 2015.
I've had it working though. Strangely, if I only connect the cinema display (the other monitor is a sony) it still doesn't work.
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by Malcolm J. Rayfield,

Malcolm J. Rayfield Oct 26, 2015 2:36 AM in response to Kat Media
Level 5 (7,945 points)

Oct 26, 2015 2:36 AM in response to Kat Media

it's an early 2015.

"Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display"
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by Kat Media,

Kat Media Oct 28, 2015 2:38 AM in response to Malcolm J. Rayfield
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Oct 28, 2015 2:38 AM in response to Malcolm J. Rayfield

Its working! Turned out I needed a dual link thunderbolt to DVI. Able to run three different screens now.So the full native support doesn't have to be 3840 x 2160.
Thanks for the feedback!
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