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sbenedetto83 Author

Level 1

8 points

Macbook M1 unable to drive 2 monitors (while MacBook Pro can)

I have bought the following device to connect two Monitors

https://www.amazon.co.uk/gp/product/B072JK37LV/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

The device works fine when connected to my MacBook Pro 16'', but when connected to my MacBook Air M1 it can only drive one Monitor, which makes me deduce that the problem is with the M1 and not the dual display port adapter.

Is this a software bug that'll be address any time soon?

MacBook Air 13″, macOS 11.3

Posted on Jul 5, 2021 9:51 AM

Top-ranking reply

woodmeister50

Level 7

20,563 points

Posted on Jul 5, 2021 1:49 PM

The M1 Mac can only support a single external display per the specs

(https://support.apple.com/kb/SP825?viewlocale=en_US&locale=en_US):

Video Support

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

Thunderbolt 3 digital video output

Native DisplayPort output over USB-C
VGA, HDMI, DVI, and Thunderbolt 2 output supported using adapters (sold separately)

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Macbook M1 unable to drive 2 monitors (while MacBook Pro can)

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