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New MBA not finding dual monitors

Staindsoul

Staindsoul

macrumors 6502
Original poster
Just got the new 2020 MBA M1. Coming from a 2018 MBA running Mojave. I have 2 x LG 27" external monitors connected via USB-C. One monitor per USB-C port on the MBA.

I had no issues with my 2018 MBA. With this new MBA running Big Sur the MBA will only detect one of the external monitors. I have tried switching the ports and cables and it doesn't matter. Anyone else had this issue?
 
Staindsoul said:
Just got the new 2020 MBA M1. Coming from a 2018 MBA running Mojave. I have 2 x LG 27" external monitors connected via USB-C. One monitor per USB-C port on the MBA.

I had no issues with my 2018 MBA. With this new MBA running Big Sur the MBA will only detect one of the external monitors. I have tried switching the ports and cables and it doesn't matter. Anyone else had this issue?
Click to expand...

Ritsuka said:
The M1 MBA supports only one external monitor.
Click to expand...
Yep. Perhaps you missed that bit.
 
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Staindsoul said:
D’oh (Homer Simpson voice). Definitely missed that. Any idea is this is permanent or will be fixed with a future update?
Click to expand...
if it's a hardware limitation, seems unlikely. but who knows? with apple, it will happen if it can... when they get to it.
 
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