High Monitor Resolution NOT on MacMini

Question

High Monitor Resolution NOT on MacMini

I have a NEC 30" m onitor (LCD 3090WQXi) that I have used for years on my old Mac with 2560x1600 pixel resolution @60 Hz. It's not working on my new Mac Mini 2018 (Mojave 10.14.1). Here I only get max 1980x1080 and even for that I have to change the Monitor setting to scaled. Holding option key only brings up even lower resolutions.

Resetting VRam did not help. Deleting library>window file from whole Mac or from user did not help. Trying SwitchresX did not help either.

Changing cables and ports did not help. The monitor only has DVI-D input (dual link). I got several cables and adapters to connect DVI-D to HDMI or USB-C, cables that are rated for resolutions up to 4K.

All this did not help. I am stuck at a distorted 1980x1080

I had a chat with Apple support, even a call and screen sharing, without success.

Mac mini (2018), macOS Mojave (10.14.1), 3.2 Core i7, 32GB RAM

Posted on Nov 25, 2018 12:32 AM

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Answer 1

Nov 25, 2018 1:13 AM in response to Thomas Huerlimann

There are np HDMI to Dual-Link DVI adapters.

You need a USB-C to Mini DisplayPort adapter

https://www.uptab.com/uptab-usb-c-type-c-to-mini-displayport-adapter-4k-60hz-sil ver/

to use with a Mini DisplayPort to dual-link DVI adapter (don't forget to plug in its USB cable).

https://www.amazon.com/Mini-DisplayPort-Dual-Link-DVI-Adapter/dp/B0751RL35H

(Many USB-C to Mini DisplayPort adapters don't support DVI adapters. The one I linked says it does support them.) Here are some more:

https://www.amazon.co.uk/gp/product/B074M2T8L2

https://www.amazon.com/DisplayPort-QCEs-Resolution-Thunderbolt-Compatible/dp/B07 117M8B2

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Answer 2

Nov 28, 2018 10:40 AM in response to Thomas Huerlimann

So, it seems that even the New Mac Mini can not handle a direct connection to a WQXi display that only has dual DVI ports.

The only solution that may work is the old Mini DisplayPort to dual-link DVI adapter and combine it with a USB-C or Thunderbolt to Mini Display Port adapter.

I chatted with several Apple supporters, even had them on the phone, and none of them had any idea what to do.

However, after two weeks of trying around, I needed a quick solution and got a new display. I would have hated the double adapter stupidity anyway. It would also consume even more energy, because that Apple Adapter needs power.

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High Monitor Resolution NOT on MacMini

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