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Los0305 Author

Level 1

6 points

Dell P3421W - USB not working with Mac Mini USB-C & PC DP

I'm having an issue where my Dell P3421W monitor USB ports don't interact with my Mac-Mini that is connected through the USB-C connection. I also have a PC connected through the DP which does interact with the monitors USB. Any idea on how to fix?

Mac mini 2018 or later

Posted on Apr 15, 2021 3:33 PM

Top-ranking reply

hcsitas

Level 6

13,124 points

Posted on Apr 15, 2021 9:11 PM

avoid the Dell’s USB-C port as it doesn’t work very well with the mini
use instead its USB 3 upstream port and connect it to the mini’s USB-A port or Thunderbolt port using suitable USB-C to USB-A cable/adapter
use HDMI for video

Good luck!

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Dell P3421W - USB not working with Mac Mini USB-C & PC DP

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