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Old 04-27-2021, 06:44 PM   #1
billsmith
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Default 2 external monitors on a M1 iMac

Hi,
I have a client that wants to add 2 HDMI monitors to a new (yet to be received) M1 Imac.
Does anyone know if this will work with DisplayLink software.
We are open to whatever dock is required
High resolution is NOT needed and the user just needs to display text and an occasional video.
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Old 04-28-2021, 01:37 PM   #2
trevasta
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That's the setup I currently am using: an M1 MacBook Air with 2 external monitors.

I route from my MacBook to a CableMatters hub (mostly to supply power to the MacBook Air), then I have a StarTech USB to dual-DisplayPort DisplayLink adapter that feeds to 2 4k monitors.

Something to note is that with the update to MacOS 11.3, the monitors only scale up to 1080p versus 4k.
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Old 04-28-2021, 02:26 PM   #3
kuros33
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I'm currently running dual 4k via Plugable USB-C 4K Triple Display Docking Station. Setup is MacBook Pro M1 -> USB-C cable to dock station -> Display Port to both of displays.
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Old 04-28-2021, 08:57 PM   #4
Ihateapplem1
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Default No dice for this guy

Hi!

My old laptop died and IT gave me a shiny new... M1. Sigh.

I'm running:

Big Sur 11.2.3
DisplayLink 1.3
Generic J5 Create Driver for USB 3 to HDMI adaptor
DisplayPort 1.2 adaptor

I have a Caldigit Ts3 Plus
I have HDMI, I have DisplayPort, I have HDMI to USB 3.0.

Going straight Laptop to CalDigit to DisplayLink (with nothing else plugged-in) never generated video on my screen.

Going straight laptop to CalDigit to USB 3.0 only mirrored my laptop

DisplayLink has never detected a monitor.

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Old 05-01-2021, 11:43 PM   #5
kienen
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I don't think Caldigit uses displaylink chipset, probably why your displaylink software is not detecting any monitors.
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Old 05-02-2021, 12:34 AM   #6
anthlover
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Caldigit does not have display link chipsets and will not support more then 1 monitor on an M1 mac.
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Old 05-02-2021, 12:51 AM   #7
anthlover
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I am fond of Targus Docks. Most offer Dual 4K, power delivery, with both dual DisplayPort an dual HDMI on one dock which is a rarity. I have 180US there is also the 191 and 190. At the moment on amazon 191 is a better deal around $189 and offers 10GB USB 3.2 gen 2 which is a rarity most of these docks are only 5GBs. I would have chosen the 191 if I had seen it when I was shopping for the dock because of the 10GBs speed.

I am going to make one might seem like usual suggestion. As these docs do power delivery over the uplink USBC cable, and provide many useful other ports only hook up one monitor to the dock. Even the M1 air and Pro have two USBC 4/Thunderbolt ports so you can afford to hook one monitor directly to the M1 mac and do everything else over the Dock. this will increase reliability of clam shell mode and reduce other hiccups you might have. Put away the Apple power supply and save it for travel or for another room in your home.

Last edited by anthlover; 05-02-2021 at 12:56 AM.
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