How can I connect my 30-inch Cinema Display through usb-c on a new imac?

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How can I connect my 30-inch Cinema Display through usb-c on a new imac?

How can I connect my 30-inch Cinema Display to my new iMac (running 10.13.5) using the usb-c port? I know the 30 inch display differs from the other models and needs a duel link dvi or dvi-d connector. Also, the proper adaptor is hard to find because of the duel link. I was wondering if someone has a solution that does not contain a large number of adaptors because each adaptor added must still support the dual link dvi connection.

iMac (Retina 4K, 21.5-inch, 2017), macOS High Sierra (10.13.5), 30-inch Cinema Display

Posted on Jun 9, 2018 4:55 PM

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Answer 1

appleuserdpd Author

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Jun 10, 2018 9:24 AM in response to Rudegar

I actually purchased an adapter that was single link and it did not work. I called Apple support and it was suggested I need a dual link adapter. Then I was trying to find a different adapter online and quite a few actually said they will not work for cinema displays and i believe one of them specifically mentioned the 30” model and said it will not work.

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Answer 2

appleuserdpd Author

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Jun 15, 2018 6:08 PM in response to Grant Bennet-Alder

I did buy the apple Mini DisplayPort to duel link dvi adaptor and a Mini DisplayPort to usb c adapter rated for 4k. It flickers on every once in a while.

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Answer 3

appleuserdpd Author

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Jun 15, 2018 7:13 PM in response to Grant Bennet-Alder

Sorry, if my reply made It sound like it worked. The solution did not work. The screen on the second monitor is black, then every once in a while it flickers an image of the desktop. I’m thinking it may be better to invest in a second monitor instead of trying to get the Cinema Display working. The two adapters ran $120 dollars. I should apply that towards a new monitor after I’m reimbursed. Then maybe one day I can add my Cinema Display as a third monitor.

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Answer 4

Rudegar

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181,314 points

Jun 10, 2018 2:38 AM in response to appleuserdpd

most dvi ports today are dual link otherwise the resolution is max 1080p

if the display it not higher than 1080p then a single link would work fine.

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Answer 5

Jun 15, 2018 6:52 PM in response to appleuserdpd

¿ is that a solution for you, or

is that unacceptable?

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Answer 6

Jun 10, 2018 9:30 AM in response to appleuserdpd

Get a third-party USB-C to Mini DisplayPort adapter rated for "4K", and use with the Apple Mini DisplayPort to Dual-Link DVI adapter (US$100). This is one case where "stacking" display adapters does work, and is required.

You must provide at least 5 Volt power on the USB pigtail of the Apple adapter, but it need not be a true USB connection, a 5 Volt power adapter (for an iPhone or iPad) will suffice.

As an alternative to the Apple adapter, Monoprice make one that is only about US$60, but does not carry USB through to the display. All you lose from that is the ability to adjust display brightness, and use the USB ports on the display.

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How can I connect my 30-inch Cinema Display through usb-c on a new imac?

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