In a support document, the company confirmed that users of ultrawide displays may not see their display's resolution and announced the upcoming fix.
If you connect an ultrawide or super-ultrawide monitor to your Mac with Apple M1 chip, some resolutions supported by your display may not be available. Apple is aware of this issue and resolution is planned for a future macOS update.
To see the additional resolutions for your external display, choose Apple menu > System Preferences, click Displays, then press and hold the Option key while you click Scaled.
Apple's new M1 Macs can be ordered here:
● 13-inch MacBook Air with M1 Chip
● 13-inch MacBook Pro with M1 Chip
● Mac mini with M1 Chip
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