How to disable automatic window snapping / resizing on MacOS 15.0 Sequoia

Since Sequoia, my Mac behaves badly. I move a window around and suddenly it becomes full size. Then I resize it again, move it to the center and the size is changed again. It is EXTREMELY annoying and not predictable. Apparently it's some auto snapping brought in from iPads (where it somehow could make sense) but for a normal mouse/keyboard user it's breaking the Apple Human Interface Guidelines. It's irritating, confusing and not even logical.

Thats not how I want my mac to be. I have searched for a button or option to disable this but I have found nothing. The only option would be to downgrade which is a major task.

MacBook Pro (M3, 2023)

Posted on Sep 24, 2024 2:49 AM

Top-ranking reply

NihonCon

Level 1

8 points

Posted on Nov 3, 2024 8:03 AM

Do you happen to have an external Dell monitor? I had the same problem on a MacMini but not on two MBPs. Very strange! But I tried killing the DDPM helper utility for controlling Dell monitors, and then my window snapping issue was solved! There seems to be some clash in technology here. Both systems implement snapping, and disabling it in both places doesn't help. You have to stop the Dell app.

(If you still want to use the DDPM app, for brightness, contrast, etc, then turn on window snapping in that app. Perversely it results in no snapping!)

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48 replies

May 15, 2025 5:21 PM in response to Owl-53

That does not fix the problem in 15.4.1

Jun 18, 2025 3:27 PM in response to kiwi66

I have tried everything listed here and despite everything being turned off all my windows keep snapping to one side or the other and resizing themselves. I HATE THIS APPLE! Please fix this.

basilgg

Level 1

4 points

Jul 13, 2025 4:44 PM in response to Randall_2023

oh my god thank you this was driving me crazy.

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How to disable automatic window snapping / resizing on MacOS 15.0 Sequoia