It seems that the latest Mac M1s aren’t as perfect as we initially thought. These powerful devices appear to have compatibility issues when connected to ultrawide or super ultrawide monitors. Luckily Apple has already recognized this problem and it looks like we would soon have a fix with the latest version of macOS BigSur.
The guys at Macworld found a short support document explaining the reason for the problem, as the latest Mac M1s seemingly can’t recognize the native resolution of these large monitors.
“If the supported resolution is not available on an ultrawide or super ultrawide external display connected to your Mac with Apple M1 chip
“If you connect an ultrawide or super ultrawide monitor to your Mac with Apple M1 chip, some resolutions supported by the display may not be available.
“Apple is aware of this issue and the resolution is expected in a future macOS update.
“To see additional resolutions for your external display, choose Apple menu> System Preferences, click Displays, then hold down the Option key as you click Resized.”
Now, this support page suggests that you may be able to find a temporary fix for your Mac M1 by switching from one additional resolution to another in the Apple menu, but that doesn’t mean that users will actually fix the problem. However, there is another fix provided by the Twitter user Imtiaaz. He explains that he found his solution to this problem by installing SwichResX, which gave him the appropriate resolutions for his device.
Apple says a fix is on the way for using a Mac M1 with ultrawide monitor https://t.co/Smoo2yCdGA’s @benlovejoy
– 9to5Mac.com (@ 9to5mac) December 24, 2020
For now, we can only wait for Apple to send out the new macOS BigSur update to fix this. At least we can be sure it will arrive before the alleged launch of a new 16-inch and 14-inch MacBook Pro. These new Mac M1s could launch in the second or third quarter of 2021 with a new mini-LED display, which would help extend the Mac M1’s battery life even further.