Can't get my 2019 MacBook Pro to recognize my new Dell U4021QW

Hi I can't get my 2019 MacBook Pro running Big Sur 11.2.1 to recognize my new Dell U4021QW

UltraSharp.


Help!


[Re-Titled by Moderator]

Posted on Feb 25, 2021 7:08 AM

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Posted on Mar 22, 2021 11:15 AM

Hi,


The problem is with the Dell cable. I had my own CalDigit TB4 cable working fine when I received the monitor but then decided (big mistake) to switch to the Dell cable provided with the monitor to test that out. This is when the problems started and the monitor will not detect my mac mini (had to connect / disconnect cable, switch inputs, etc to get it going). Gone back to my own TB4 cable and problem disappeared...

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Can't get my 2019 MacBook Pro to recognize my new Dell U4021QW

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