Thursday, November 7, 2024

Macbook Air M1 Not Mirroring Show to Dell Monitor with USB-C, though USB-C charging via the Dell monitor is OK

I’m experiencing a problem with my MacBook Air M1 (2020, Sonoma 14.3) and Dell monitor (mannequin P3221D), which helps USB-C. Till lately, I used the Dell monitor as my major show with none issues. The monitor was additionally powering the MacBook via its USB-C connection. It labored out advantageous for greater than 6 months.

Nevertheless, all of a sudden, the MacBook stopped mirroring its show to the Dell monitor. The MacBook itself is functioning usually, and it nonetheless signifies that it’s charging when related to the monitor.

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Regardless of this, the picture from the MacBook is now not showing on the Dell monitor. Moreover, whereas the MacBook acknowledges it is being charged via the monitor, it does not acknowledge the monitor within the show settings as an exterior display screen.

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The Dell monitor shows a message stating that the USB-C connection isn’t recognized:

“No USB-c sign out of your gadget”.

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I’ve tried:

  1. reconnecting the cables,
  2. turning off the macbook air
  3. upgrading macbook air to the newest model, Sonoma 14.3
  4. and utilizing completely different ports on the mac, the monitor solely has 1 USB-c. Sadly, the difficulty persists.
  5. I additionally tried a unique USB-c cable. However, the identical persists

May anybody present options on tips on how to diagnose and resolve this downside?

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