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I use my external 4K display in portrait mode (i.e., rotated 90 degrees) and when I do so on the new M1 MacBook Pro, I’m stuck at low resolution. Landscape works fine. I’ve tested with another display (different adapter and cables) and the issue is the same. Is anyone else experiencing this?
I spoke with Apple Support and these were the steps they walked me through, which worked (for reference, my Macbook Pro w/ an M1 chip is on Big Sur 11.1).
When I did that, I saw many more resolution options and selecting the appropriate one solved my issue with the vertical monitor.
Hope that helps. Cheers!
I spoke with Apple Support and these were the steps they walked me through, which worked (for reference, my Macbook Pro w/ an M1 chip is on Big Sur 11.1).
When I did that, I saw many more resolution options and selecting the appropriate one solved my issue with the vertical monitor.
Hope that helps. Cheers!
That's a bummer. I was hoping that it would get fixed in the next release.
I am experiencing the same thing. I've got a 24" monitor that I run in portrait at 1200x1920 from my iMac. When I plug it into my M1 MBP it works fine in landscape but I'm limited to 1080px wide when I rotate it 90 degrees to portrait.
Same issue here on Macbook Air M1 - FHD external Monitor (Lenovo) in portrait only supports 1050 x 1680 (pressing option does not show up further resolutions). Resolution is normal (FHD) in landscape. Never had issues with prior laptops/macbooks.
@Bidbrain - I have the same issue with my Dell U2515H in portrait mode. I can only choose between 756 x 1344 or 720 x 1280 resolution. In landscape I get the same options as my 2018 MBP 15" (native 1440 x 2560). EasyRes is a nice work around, however I'd like to see this work out of the box.
Looks like the final 11.1 release fixes this issue. At least, it did for me.
Same issue, new M1 MacBook Air, cannot rotate monitor 90 degrees except at low resolution.
I tried installing the latest Big Sur beta (11.1) to see if, maybe, it was already fixed, but no luck. Same problem.
The App EasyRes (see AppStore) solved the issue for me. The desired resolution can be set.
EasyRes worked for me too. Thanks! Now I can get back to work while I wait for Apple to fix the OS.
lifesaver :) thanks!!
Worked great! Hopefully apple can get this fixed ASAP.
Another "yea it worked" from me as well. Thanks.
I'm using a MAC mini M1 on a LG HDR QHD monitor > same problem:
> landscape > fine
> portrait no help - not even with EasyRes App (appropriate res. not available)
M1 MacBook Pro cannot rotate display
