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tonykaku Author

Level 1

26 points

Sequoia latest update wreaking havoc on system

I have just updated my otherwise trusty Mac computer to Sequoia 15.0.1, and am now dealing with a host of new problems right and left on my system. Can you help?

The most glaring symptom is that immediately after the 15.0.1 update, half of my computer's screen became "grayed over" — that is, covered with a block of horizontal lines that did not exist before the update. The block of lines move up and down slightly and flicker a bit.

Please see attached screenshot for details. (I did try taking a screenshot directly from my Mac internally, but this block of horizontal lines does not appear at all on the computer's own internal screenshots. Thus, my taking of this photo with my iPhone externally.)

The block of lines you see in the screenshot do not seem to be interfering with the actual functioning of the computer — I can still do tasks on my Mac computer "under" the block of horizontal lines. But this is definitely not normal and I need to resolve this major problem.

There are a host of other side issues I am trying to deal with as well, like plugging up leaks in a sinking boat: a noticeable lag in the computer's operation, network connection issues, Time Machine backup issues and even the inability to run Apple diagnostics or enter into safe mode online. They all started up right after updating to Sequoia 15.0.1.

What could be the problem here with the display/screen and how can I begin to fix this? Desperately in search of answers here.

iMac (M1, 2021)

Posted on Oct 4, 2024 6:56 AM

Top-ranking reply

horacenalle

Level 1

15 points

Posted on Oct 7, 2024 12:46 PM

My MacBook has been rendered useless by Sequoia. Can I uninstall it?

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50 replies

Pamsue1

Level 1

12 points

Nov 10, 2024 11:25 PM in response to tonykaku

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!

Nov 18, 2024 10:11 AM in response to tonykaku

It's happening to me too. The hard drive was indexing for DAYS. The process was slowed because it would be delayed in Sleep Mode. I finally went into Battery > Options > "prevent automatic sleeping"

According to Activity Monitor, Indexing monopolized 90% of CPU.

I think the drive has calmed down, but with the advent of Apple Intelligence, 4.91GB is now held hostage. I consented to try it, then noticed serious lag, so turned it off but the data still lives on the drive.

tonykaku Author

Level 1

26 points

Oct 12, 2024 2:57 AM in response to tonykaku

As promised, here is an update on the current situation with my Apple computer (macOS Sequoia 15.0.1) as described in my initial posting here of about a week ago, "Sequoia latest update wreaking havoc on system".

I originally thought the problem I was having with the horizontal lines covering the screen was an update-related issue. The two may be related, but as far as Apple itself is concerned, it was an LCD display issue — not an update issue.

I had sent my Mac off to Apple Japan a few days ago and my computer came back today fully repaired and functional. As of today, the horizontal lines are gone and everything seems to be working smoothly. The Apple invoice I received confirms the repair was of an LCD display issue — the very same kind, in fact, that many other owners of the same iMac M1 2021 model have been having in various countries two years after purchasing their computer.

If you are encountering these same kinds of horizontal lines on your Mac screen, as I was, have a look at this thread here on the Apple community forums from last year: "Persistent horizontal lines appear on iMac screen". This was very helpful for me and many other Mac users in understanding the cause of the problem and taking steps to deal with it. I hope it helps you too.

So, for now, consider this particular problem with my iMac resolved. Many thanks to all who shared their advice and guidance on my initial posting. It was very much appreciated.

Dec 19, 2024 9:32 PM in response to tonykaku

I don't have your graphical issue; but I do have a system related one that other's may have as well after the Sequoia 15.2 install, that being my internal SSD (call MacHD to many, I have renamed mine) has for the past 3-4 months had ~175GB free of its 500GB; but with 15.2 installed, I suddenly have ~248GB showing as free from the Finder's perspective (see screenshot from Finder vs Disk Utility).

Finder:

System Settings:

Disk Utility:

I have rebooted and also trashed my Finder's settings file (then rebooted).

I have also had Disk Utility check if the drive is okay using First Aid and it is.

Note, I am running this on an M1 Mac mini with 16GB RAM and a 500GB SSD. I have checked with my alternative Admin account and it shows the available space correctly (~175GB); so it could be a corrupt User directory; but part of me doubts this, as it shows up in Safe Mode if I log into my main user account, the one the images are taken in).

Just thought to share.

HWTech

Level 9

61,826 points

Oct 7, 2024 6:54 PM in response to Ree28Apple

Ree28Apple wrote:

My Macbook pro 2019(intel) stopped charging exactly after MacOs 15.1 and both the ports aren't working. Visited Apple store and they have mentioned its a hardware issue and parts need to be replaced. Personally I'm pretty sure it happened due to OS update but there's no way I can prove it and Apple isn't taking responsibility.

A macOS 15.1 update could not have caused any damage because there is no public release of macOS 15.1 yet. macOS is only at 15.0.1. Plus it is against Apple's rules to discuss any Apple beta software on this forum. If you have used a beta OS, then if anything breaks that is part of the agreement since beta software is still undergoing development & testing....use at your own risk.

Besides Apple's Diagnostics may be able to confirm a hardware failure (if the diagnostic finds a problem, then you have a hardware issue). Or if the charging issue occurs outside of macOS Sequoia, then it is not a Sequoia specific issue.

FYI, the 2019 model laptops (especially the 16" model) do have a much higher rate of Logic Board failures than any other model.

Oct 14, 2024 7:25 PM in response to tonykaku

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.

Nov 12, 2024 1:13 AM in response to tonykaku

a host of websites are not accessibele anymore, prodcing messages like:Access Denied

You don't have permission to access "http://www.ziggogo.tv/nl.html" on this server.

Reference #18.4fc816c3.1731402566.3a27090a

https://errors.edgesuite.net/18.4fc816c3.1731402566.3a27090a

Also downloads from FTP servers seem to block: So my advise: DO NOT INSTALL this update!!!!

[Re-Titled By Moderator]

jc1225

Level 1

8 points

Nov 13, 2024 9:28 AM in response to Ree28Apple

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.

Nov 18, 2024 1:16 AM in response to tonykaku

My macbook pro 2020 was running great before I downloaded Os 15.1 Sequoia. Now I cannot bin un-necessary applications, my mac does not recognise any bluetooth items nor hard plug of headphones ect.

I had a few issues n bugs with previous os dl / uploads. But nothing on this scale. If it is not sorted soon I will be buying a new Microsoft pc!

Nov 22, 2024 2:06 AM in response to tonykaku

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.

Dec 23, 2024 6:39 AM in response to jonasilver137

Well, not exactly. Anyone with a computer that shipped with a previous version of the OS can do a system restore back to the original OS without using Time Machine. Do a clean install by rebooting to system restore, wiping the disk using disk utility, and use the restore function, which connects directly to the Apple OS servers or your Time Machine (your choice - if buggy OS, probably best to go original from the Apple server rather than use your own backup). Exact process varies depending on Intel or Silicon processor. During the process, you can elect restore from Time Machine, but that's non-essential. You can use migrate to move files from backup or Time Machine after the OS install back to the original OS.

Nov 10, 2024 11:35 PM in response to horacenalle

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

Old Toad

Level 10

211,051 points

Dec 28, 2024 2:34 PM in response to Smoke Show

Since your problem is totally different from the topic we're in you should please read the following user tip, create a new topic in the macOS Sequoia community and restate your question/problem in detail:

Writing an Effective Apple Support Communities Question - Apple Community

Also have you installed and run any "cleaning", "optimizing", "speed-up", anti-virus or VPN apps on your Mac?

This way you'll attract more appropriate responses.