Sequoia latest update wreaking havoc on system

You can't uninstall macOS updates. The only way to revert back to a previous version of macOS is to restore from a Time Machine backup. Follow this Apple support article for help: Restore your Mac from a backup - Apple Support

Cheers,

Jonasilver137

You are definitely welcome

Thank you too for allowing me the opportunity to assist

Look forwards to reading about this outcome with Apple Japan

Short answer is No, Full Stop

Since the update to Sequoia 15.1. I have a grey rectagle covering approx. 85% of the desktop. Software windows open on top but files stored on desktop and placed in the middle of the screen are not visible. My second screen does not show this rectangle. If I close the laptop (Macbook Air 2022), the grey box moves over to the other Display.

I tried to take a screenhot, which is not possible. It alwys shows all grey, while there are clearly the trees in hte background, the desptop default picture. This is rediculous!

Yes, everything since Mac OS 15 seems very buggy. I do not believe it is a hardware error. Silicon Macs use unified memory, so the GPU graphics memory is the same as the CPU processing memory, simply separated by several abstraction levels, and as it feels here by a software level gone wrong. I don't think there is much you can do apart from downdating or waiting for the next update, although downdating will not remove lower level firmware updates, which only can be restored with a second Mac.

Add on

Apple Designed the M1 iMac Apple Silicon Computer to function with whatever version of macOS it qualifies to run, Including macOS 15.x Sequoia

Do doubt, they have Engineered and Tested macOS 15.x Sequoia to function without a Software / System Firmware issue that would manifest this Display issue

FYI for comparison purposes

Running a M1 machine from 2020 ( Headless computer ) , a M2 from 2023 ( Headless computer , and a M3 MBA.

The M1 has gone from macOS 11 to macOS 12 to macOS 13, macOS 14 and currently macOS 15

The M2 from macOS 13 to macOS 14 and currently on macOS 15

The M3 from macOS 14 to current Sequoia

None of these machines exhibit these Lines issue in the Display

Thank you for your response! There was a typo; my Mac is on 15.0.1, and that's what caused the issue. I went to the Apple store, and they conducted diagnostics. Surprisingly, even after Apple confirmed it was a hardware issue (either the USB-C ports or the logic board), my MacBook powered up, which I find quite amusing.

I managed to get it working by completely draining the battery (this is crucial) and then charging it for ~4 hours, after which it powered on.

Had to do a factory reset on my mac mini M2. I did not have time machine setup. Luckily it was a new machine, but still lost about 5 hours of machine setup time having to set everything up again.

The update to 15.01 basically rendered my machine unusable including the OBS Studio software. Windows updates weren't ever this bad, terrible what Apple has become.

I’m 100% it’s the OS update. My motherboard was fried within 2 hours of usage after installing Sequoia 15.1. since there are so many issues my laptop was continuously restarting on its own until it wouldn’t power up at all. I relayed this to people at the Genius Bar and they refused to make a note saying i had just installed Sequoia 15.1 and it was only after this install that I began seeing issues. They replaced a few components and all my data is gone bc of Sequoia 15.1.

I have also been having problems with it, including the fans often ramping up when I only have Safari and Music open, sudden freezes for a few seconds, most applications getting the beach ball of death and all round performance as if I'm back on my 2012 MacBook Pro.

I have a fully specced 16 inch M1 Max and should not be getting these kind of issues with such a (once ultimate) machine.

sequoia paralyzed my MacBook Pro … but later, it seemed to work.

My trusty 2020 27" iMac Core I5 has become almost unusable since installing Sequoia 15.0.1 the other day. Random freezes and app crashes all over. Was working great before. Very frustrating!

Thank You Very much for the the update

That is very appreciated

Regards PRP_53 🇨🇦

Depressing, my MBA, M1, is still on os 13.7 because of the problems with os 14. Apple can no longer write reasonably bug free software I guess.