User profile for user: kylelane7285
kylelane7285 Author
User level: Level 1
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HDMI and USB-C display not working at the same time

Hello - I am trying to get both of my displays working with my Macbook Air 15" - 2024 model M3. I have one display that takes a USB-C as input and another that takes HDMI. I am able to display to the USB-C monitor and the HDMI monitor one at a time but when I plug them in at the same time it will only take the first input that I plugged in.

MacBook Air (M3, 2024)

Posted on Aug 23, 2024 1:47 PM

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User profile for user: Servant of Cats
Servant of Cats
User level: Level 8
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Posted on Aug 23, 2024 4:32 PM

Use dual monitors with your MacBook Air and MacBook Pro with M3 chip - Apple Support

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User profile for user: BobTheFisherman
BobTheFisherman
User level: Level 10
85,663 points

Aug 23, 2024 2:15 PM in response to kylelane7285

Check the specifications for your Mac: MacBook Air (15-inch, M3, 2024) - Technical Specifications - Apple Support

The spec says: Simultaneously supports full native resolution on the built-in display at 1 billion colors and:

  • One external display with up to 6K resolution at 60Hz
  • Close the MacBook Air lid to use a second external display with up to 5K resolution at 60Hz


Your computer supports 2 displays, the internal display and 1 external display, or, 2 external displays if the intenal display is not on.

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HDMI and USB-C display not working at the same time

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