Pinch zoom on MacBook Pro unreliable with macOS Monterey

On the latest MacBook Pro (16" M1 Max) running macOS Monterey the pinch zoom gesture on the track pad is unreliable. About half the time spreading my thumb and index finger apart or moving them closer together does produce the expected zoom effect, but the rest of the time either nothing happens at all, or the curser tracks the index finger but there's no zoom. This happens with Safari, Chrome, Photoshop, and other applications.


The problem does not appear to be caused by a hardware defect. It occurs with both the built-in trackpad and an external Magic Trackpad. Only pinch zoom is affected; other single and multi finger trackpad gestures work fine. Also, pinch zoom used to work on a 2019 MacBook Pro 16", but it became unreliable after upgrading to Monterey.


Is this a known bug? Is there a workaround?

MacBook Pro (2020 and later)

Posted on Nov 15, 2021 6:06 PM

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Posted on Nov 18, 2021 4:29 PM

Hello fkadb,


I hope that I can help you and anyone else out that is having this problem including Apple. I wanted to let you know that you aren't the only one experiencing this issue. I 100% have been experiencing this as well. This is almost certainly due to the new MacOS. I have a MacBook Pro (16' Intel 2019). It responds the same way (meaning its tracking about half the time when pinching to zoom). This happened after updating to Monterey. A fresh install did not fix this problem, nor will safe mode unfortunately.


As far as a fix I believe this needs to be looked over by the developer team. This seems weird but I notice after asking a few of my friends to try it out - some of them had more success zooming in first try than others. The issue seems to arise from size and / or shape of the inputs on the trackpad - meaning the size of your fingers and what part is touching the trackpad (believe it or not).


Makeshift Fix


I have found a work around. However, my fix is less than ideal. Use both your hands (I use my both my index fingers) and spread them apart at the same time like your normally should be able to do with one hand. You will run into hiccups doing this but it almost always works with having fewer instances were it doesn't read the input of your fingers.


I hope this helps you out a little, and I hope an actual fix comes


Jack

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68 replies

Jun 6, 2022 12:50 AM in response to fkadb

This is incredible. I cannot believe so many others are also experiencing the issue, meanwhile Apple turns a blind eye to the problem. 13-inch 2017 MacBook Air on Monterey 12.1, been having this problem since Catalina. In my case, toggling the gesture on and off in the settings doesn't work. I have yet to try killing the Dock process, though. I have noticed that occasionally the problem fixes itself in a few minutes. It is still jarring to have this glitch happen in the middle of my work, and a software patch to this would be appreciated very much.


Apple, please fix.


(UPDATE: Neither killing nor force killing Dock fixes the problem for me.)

Nov 16, 2021 2:52 PM in response to destiny241

Hi destiny241,


The problem with the zoom gesture persists in safe mode, and it also persists when I log in as another user (I checked both just now).


The problem occurred right from the start with a brand new 2021 MacBook Pro (16” M1 Max) running macOS Monterey 12.0.1. On a 2019 MacBook Pro (16” Intel core i9) the problem started when I installed Monterey 12.0.1; before that zoom used to work just fine.

Dec 26, 2021 10:54 PM in response to mereøl

Apple seems to be in low-level denial about this. I spent over 3 hours with 4 different service advisors on the phone today trying to get help with this problem for my 2018 i5 Mac Mini, as well as a few other problems that have sprung up with Monterey. Finally it got sent to the engineering team to look at. No lie though, two of the service advisors were in complete denial about the problem. One of them kept telling me it works for him on his machine, so he doesn't think it's an issue with Monterey. Another tried telling me I needed to buy the newest trackpad for it to work properly, and that my hardware isn't working (despite everything else about the trackpad working, and having no issues with this until the update). So based on my advisor experience, I'd say it's 50/50 Apple ever fixes this, as there seems to be a mix of goodhearted genuine intrigue muddled with Apple-Is-Infalible zealotry.

Jan 17, 2022 12:34 PM in response to fkadb

I'm having the same problem with pinch to zoom being unreliable on a 2020 M1 MacBook Air since upgrading to OS Monterey in December. The recent upgrade to Monterey 12.1 has not addressed the issue. Trackpad pinch to zoom is unreliable across a range of apps including Safari, Preview, Word.


This is clearly a known issue, given the number of reports online and on this page about the issue, very disappointing Apple hasn't addressed this yet.

Dec 31, 2021 12:27 PM in response to muhndo

Hey muhndo,


I agree that this may be an issue that it looks like they will drag their feet to acknowledge since it wasn't fixed in their latest update. The gasket around the screen issue sounds like a problem specific to your machine since I personally haven't encountered that issue with mine. Also, I haven't cleaned my screen too frequently since I started using the thin paper that was protecting the screen the first time you open the laptop. I basically lay that paper on top of the keyboard before closing the laptop so it prevents it from getting the screen dirty or transferring the oil from my fingers on the keyboard onto the screen.

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Pinch zoom on MacBook Pro unreliable with macOS Monterey

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