More and more Apple users are reporting of a particular bug that takes over their computers. The M1 Mac, built with Apple’s M1 chip, has been giving out an annoyance related to a screensaver that suddenly appears on the screen.

According to MacRumors, users report some of Apple’s M1 Mac models are susceptible to a Fast User Switching bug that spontaneously activates the screensaver and leaves the user unable to dismiss it. To describe how this bug shows up, the screensaver appears on the screen, and the mouse pointer is still on top and moving, but nothing else works, and users have to close and re-open the lid on their MacBook Air or MacBook Pro, or light press the Power/Touch ID key or use the Alt-Command-Q key combination to get back to the login page.

MacBook screensaver bug
MacBook screensaver bug

According to The Verge, other users share the same buggy feeling happening on other devices equipped with M1 chip, such as MacBook Airs, Pros, and Minis. Reddit (in a few threads), and Apple’s support forums also describe the bug..

Many people reporting the issue in this Reddit thread say they have multiple accounts on the same computer. And for what it’s worth, I’ve set up two accounts on my MacBook Air. One user on Apple’s support forums disabled Fast User Switching and said they weren’t seeing the screensaver, so perhaps that’s a workaround until Apple addresses the bug.

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