Mac Sequoia, Screen Flickering every few minutes

Mi flickering is definitively gone with 15.1 P*u*b*l*i*c B*e*t*a 2

Sorry for asterisks, Apple removes references to testing software in this forum.

Strange.

I can confirm that with 15.0.1 is disappeared, maybe only for me.

weird.

Me too, same flashing desktop issue. I'm running a MacStudio M1. It started with the OS15 update and is on my MacBook Air as well. I'm not running the Mendeley web importer extension.

I just updated to 15.0.1 and still have that issue.

I don't have the Mendeley web importer extension, so it must be something else (at least on my device).

I still have them though with Sequoia 15.0.1 and it's more frequent than before.

I am running 15.0.1 and still get the screen blink every few minutes..

It's not a purely cosmetic issue. The flicker interrupts certain native processes. For instance, if I have Background Sounds playing, they stop and need to be relaunched whenever there's a flicker.

I had same problem since updating to Sequoia yesterday. I called apple support. What seems to have fixed the problem (at least for now):

Start up your computer in Safe Mode. If you do not have the flickering while in Safe Mode, it is a software problem. That is what they told me. If that is the case the next step is to reinstall Sequoia. See the link with the steps for starting up in Safe Mode and for reinstalling Sequoia. They told me I had to do the safe mode thing FIRST. The first time I called, the person asked me to re-install, but did not ask me to start up in safe mode. That did not work. I called again and the other person told me I had to start in safe mode first, and then reinstall. It has been about two hours that I have done these two steps and so far no flickering or flashing or sliding the screen from right to left.

1) Start up your Mac in safe mode - Apple Support

2)Start up your Mac in safe mode - Apple Support

I have a 2019 MacBook Pro that has the same issue. The propsed solutions did not work for me, including the solution that shall not be named. I am sure of is software related since it does not happen when running Windows 10 through Bootcamp.

2020 Macbook Pro. Same issue the moment I upgraded to Sequoia. I'm on 15.0.1, still happening. It's terribly annoying. Called support and tried safe mode and tried logging in as a different user. Same issue. Needs fixed.

I have the same issue on my MacBook Pro M1 Max. It started after updating to macOS Sequoia 15.0. I uninstalled the Dell monitor app and Magnet app, but the screen is still flickering. Any advice, please?

Are you sure this is the same issue? In my experience, this is purely a cosmetic problem. The background is flickering; however, nothing is happening with open apps, including Finder, in any negative way.

Losing external monitors for a few seconds and experiencing screen blips during zoom meetings seems more like a hardware issue to me. Can you try using a different port on your MacBook (like USB-C or Thunderbolt), or test a different monitor using HDMI (even a TV)?

P.S. I have a feeling that a few days after the 15.0.1 upgrade, things improved significantly with the background flickering. It's interesting because I remember it flickering right after the upgrade, which left me a bit disappointed.

me too on a iMac Retina 5K, 27" (Intel), 2020 with macos 15.0.1 .

The screen briefly flickers green. This can even be reproduced in the Apple TV app.

This does not happen during movie playback. Only when a new screen is displayed or updated. I hope this information helps you to investigate the problem further. Thanks.

I've been having this all week as well. Like some others have mentioned, it's not just a cosmetic flickering, it's as if something is switching the focus of the app to something else. This frequently interrupts keystrokes when typing. And if you have any modal dialog, like a right-click, menu bar app, etc. those get dismissed as well.

What I've narrowed it down to on my end is some Python scripts that manage Docker containers. The script tries to access a file in `~/Library/Group Containers/...` to change some Docker settings, which requires permissions to other apps (or Full Disk Access). If I decline that access prompt, or disable FDA, the flickering stops, or at least becomes a lot less common, maybe once every few minutes (annoying, but usable). I've also tried to comment out the method call that does that file access, and it seems to also help, but unfortunately breaks some stuff with Docker, so I can't use that solution.

My M2 MacBook Air is on Sequoia 15.0.01 and this is happening to me as well. The flicker only happens to my desktop which flashes a solid dark grey wallpaper and then reverts back to my desktop image. I am also not running the Mendeley web importer extension.