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User profile for user: Uncle_Jesse
Uncle_Jesse Author
User level: Level 1
13 points

Trying to connect 2 external monitors to 2022 13" MBPro M2; not detecting second monitor for extended desktop

Having the same issue. System Settings > 'Displays' only recognizes either one external display or the other when both USB-C adapters are connected.


MacBook Pro, 2022, M2, Ventura 13.4, 2 USB-C ports


Displays are connected via adapter's HDMI ports.


1st USB-C

Adapter: MOKiN model#: MOUC0401

Display: AOC 24B2W1 model#:24B2XH


2nd USB-C

Adapter: MOKiN model#: MUC0501B

Display: ViewSonic VX3276-FHD model#: VS17220


Have tried DisplayLink Manager and macOS InstantView and neither app detects USB display. I also have a UtechSmart adapter model#:UCN 3273 I have tried and doesn't work either.


Thank you in advance for your help.

MacBook Pro 13″, macOS 13.4

Posted on Jun 16, 2023 10:52 AM

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User profile for user: John Galt
John Galt
User level: Level 10
146,396 points

Posted on Jun 17, 2023 4:36 AM

Does your model Mac support two external monitors?


Excerpted from MacBook Pro 13-inch - Tech Specs - Apple:


Simultaneously supports full native resolution on the built-in display at millions of colors and:

  • One external display with up to 6K resolution at 60Hz
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User profile for user: Servant of Cats
Servant of Cats
User level: Level 6
17,242 points

Jun 20, 2023 6:37 AM in response to Uncle_Jesse

Uncle_Jesse wrote:

Adapter: MOKiN model#: MOUC0401
Adapter: MOKiN model#: MUC0501B

Have tried DisplayLink Manager and macOS InstantView and neither app detects USB display. I also have a UtechSmart adapter model#:UCN 3273 I have tried and doesn't work either.


Are those DisplayLink-equipped adapters? The DisplayLink workaround (for having multiple, software-driven displays) requires DisplayLink support in the external device as well as using a third-party DisplayLink driver.


It's not a good idea to mix and match USB graphics products from DisplayLink and other vendors.

https://support.displaylink.comhttps://support.displaylink.com/knowledgebase/topics/80209-troubleshooting-macos


For what it's worth:

https://support.displaylink.com/knowledgebase/topics/80209-troubleshooting-macos


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Trying to connect 2 external monitors to 2022 13" MBPro M2; not detecting second monitor for extended desktop

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