Here is my current scenario:
I have a Macbook pro 2017 as work laptop.
I use a Macbook air M1 as display
I do the following Settings -> Display -> Add Display -> "mac air"
It works just fine but the resolution on the mac air is entirely wrong and it does not let me select an actual valid resolution.
What can I do to fix this?
MacBook Air 13″, macOS 12.4
Thank you for coming to the rescue with your suggestions, leroydouglas, and urquhart1244.
Much appreciated!
Smilin Brian also suggests:
"The resolution was too high.
2560 x 1600 is the resolution.
The user selected: 2880 x 1620.
Why not simply select Default for Display?"
Cheers :-)
If you hold Option (Alt) while clicking Scaled (when it was set to Default), you might see more resolution options.
Anyway, those hidden options were accessible when I last had a real second monitor, two OS versions ago.
Is it better if you select ‘Default for Display’ instead of ‘Scaled’?
devluz wrote:
Here is my current scenario:
I have a Macbook pro 2017 as work laptop.
I use a Macbook air M1 as display
I do the following Settings -> Display -> Add Display -> "mac air"
It works just fine but the resolution on the mac air is entirely wrong and it does not let me select an actual valid resolution.
What can I do to fix this?
Can you verify you have the 'MacBook w/built in Retina Display' set to— Use as: Main
then select the 'macair' and make changes to the extended ...(?)
Can you toggle to a mirrored setup and test, toggle back and test again (?)
See Luis Sequeira1 post here: Suddenly I have my two displays mirroring… - Apple Community
Hi devluz,
Welcome to the Apple Community.
Wondering which Mac OS versions you are using on each of the Macs.
Apple support have an article online that may, or may no,t help:
(NB Please correct the MacOS version at the top of the article, if necessary.)
Change Displays preferences on Mac – Apple Support
Hope this helps :-)
Thank you for your reply, devluz,
If all else fails ...
You might want to reach out to Apple Support, for their help and advice in resolving the issue.
There is a "Get Support" link at top right on this discussion page.
Or
Apple phone numbers around the world
Thank you for your reply. Sorry that hasn't helped, devluz,
I don't know of anything else that might allow you to change the resolution, while the display is connected.
Hopefully others with more experience may offer advice., now that we know which MacOS you are using.
All the best :-)
To Urquhart1244: If I set it to "Default for Display" it will have the same resolution as "2880 x 1620".
To leroydouglas: Yes this is the setting I used. I can also switch the main & extended setting but it does not resolve the issue. The resolution is always wrong on the M1 macbook air but correct on the mac book pro.
Btw. If I set it to "mirror" display instead the resolution is correct (as both screens have same resolution). Only if I extend the desktop it will break the resolution on the M1.
Mac OS will simply use the wrong resolution and won't even let me select the correct one.
They all use macOS 12.4. The article sadly doesn't help as the selection simply does not let me select the correct resolution.
I tried it. Sadly, still doesn't let me to select the correct resolution
How to configure the resolution correctly if I am using a mac book air m1 as additional Display?
