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Old 07-26-2021, 02:41 PM   #1
mdelfs
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Join Date: Jul 2021
Posts: 1
Unhappy Mac Mini M1 Need 3 total monitors which dock to purchase?

I currently have:

Mac Mini M1 2020
2 15" Dell monitors (DVI or VGA)
1 Hanns-G 24" monitor (HDMI or DVI)
1 CalDigit Mini Thunderbolt Dock with 2 Displayport Ports


I tried to make this all work this way:


I plugged the 2 smaller Dell monitors into the 2 display ports (active cables converting from DVI to Displayport)

I plugged in the larger monitor to the HDMI port of the Mac Mini.

I'm only seeing 2 displays and DisplayLink software reports no monitors detected.

Obviously, the CalDigit does not support this setup.

Which dock should I replace the Caldigit with to get these 3 monitors to work?

Thank you!
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Old 07-29-2021, 07:16 PM   #2
christhedeputy
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Join Date: Jul 2021
Posts: 1
Default don't confuse DisplayPort with DisplayLink

If you thought it would work, my guess is you might have confused DisplayPort and DisplayLink as the same thing - they aren't.

Your M1 Mac mini can support 2 displays (as you've already seen), a third will require you to get a displaylink adapter or a displaylink dock. My recommendation is to keep your CalDigit dock and just get a simple display link adapter - not only will you save money, the CalDigit dock has much higher bandwidth available for everything you plug into it because it is thunderbolt. Any DisplayLink dock you get will be USB3 only, and each displaylink display on it will be eating into its overall lower bandwidth. I would recommend this adapter:
https://www.amazon.com/gp/product/B0...SIN=B00A2E1MQA

On the other hand, a Displaylink dock could be a 'cleaner' setup. But if you decide not to use the caldigit dock, remember you will need either a DisplayLink dock that supports dual displays, or you will need to get something to run the second, natively-supported display, like a usb-c to dvi adapter.

All of these different configurations will have an impact on how many free ports you have and the bandwidth available to them, so take that into consideration.

I would also recommend you keep your lowest resolution/least useful monitor on the DisplayLink adapter. Running a display over displaylink is not as reliable or fast as a natively-supported display.
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