how do I disable automatic window resizing in Sequoia

This is what happens when you let I.T. types run the show instead of asking people what they want/need.

PatriceW999 wrote:

Since updating this morning when I move windows around on my cinematic display they JUMP to full screen if I even get close to the top of the screen. How do I make this STOP!

Hold the Option key while hovering over the green pill button and select the option to get out of that mode(?)

for your app window.

or as suggested above turn off the tiling features in Settings.

Thanks for confirming, @d.s.cobb! That's exactly the faulty behavior I had reported via Apple Feedback.

Here, it's a Mac Mini M2 Pro with a Dell UltraSharp 40" monitor (U4021QW). And that turned out to be the problem.

As suggested by Dell, I had installed Dell's DDPM software, and allowed it to open automatically on startup. That software has a feature called EasyArrange which allows, among other things, window tiling just like in Sequoia. I've never used it, though, and wasn't aware it was seemingly turned on (maybe it wasn't). For more than a year, it hasn't caused any issues.

Now that changed when updating to Sequoia. Don't ask me how this is possible, but the new macOS window tiling feature seems to have enabled the DDPM EasyArrange feature, with no way of disabling it.

From there on, fixing the issue was easy: Quit DDPM, and the nasty behavior immediately goes away. Go to Settings, Login Items & Extensions, Open at Login, and remove DDPM, so that it doesn't load on startup. Problem solved. This also explains why most people in this thread didn't encounter the problem the way I did.

If you don't use a Dell monitor, it might be your monitor vendor's software that macOS Sequoia plays fancy tricks with. Good luck sorting it out! (I'll post an addendum on Apple Feedback so they're aware of this problem.)

I completely agree. SW interoperability and compatibility is an incredibly complex subject, so you need to be able to take a look at a lot of different configs and user experiences to make these determinations. Thanks for the help.

CesareMedici wrote:

@dialabrain It's a Sequoia issue in any case. Why would Dell's DDPM software start behaving differently from how it did for more than a year?

Because macOS Sequoia changed and Dell's software didn't.

I'm not blaming Apple for this, but any major change can have inadvertent consequences.

Apple does not write macOS and add features to stay compatible with third-party software. It's up to third-party software vendors to remain compatible with the latest versions. It's very simple.

Quanxi wrote:

Thanks for this help. I hated this. The feature might be great, but dumb thing to make it default.

Love to customize things. But please, let us choose what we want.

Apple has never made a new feature off by default. Maybe the Application Firewall, but that’s completely useless so maybe doesn’t count.

OMG this was irritating. I have a 49" curved monitor and having everything span the entirety of the screen was awful, it always took a little bit extra to fix it. Going to the system settings and turning off tiling was the cure. I did double check that the DDPM software wasn't there and it wasn't thank goodness.

The resizing behavior happens to me any time I try to move a window, whether it hits the top of the screen or not.

The window tiling feature of Sequoia doesn't do that. It should only do that when you hit an edge. Even then, it doesn't tile unless you release it with the tile showing. Move a little and the tile marquee disappears.

D.S. Cobb: Thanks for your solution! I disabled tiling, but that didn't work. I had no idea it would be the monitor until I read your post. I have a Dell and followed your instructions and the automatic resizing stopped.

cgapperi wrote:

Wouldn’t that be nice if it was true. I am not the only one here reporting the issue. I rarely get the marquee. It just resizes. The whole 48”. I have tried always moving down first just to be sure it isn’t resizing as a result of hitting the top. Nope. Doesn’t help.

I’ve also seen reported here where people with Dell monitors have some sort of software installed. That does automatically resize the window when you move it.There is a momentary delay before the marquee appears and if you only delay that long and it is essentially popping up, but you don’t see it Then it would do that to you and appear to be instantaneous, but it’s not

I did that long ago - but it did NOT help. For some reason my browser windows, Xcode windows, BBEdit windows suddenly "maximized" when I mistakenly dragged the windows too close to the top or left/right edge of the screen.

Only when I completely turned off EVERYTHING there ("Tile by dragging windows to screen edges", "Hold option key while dragging windows to tile" and "Tiled windows have margins") -- only then the dreaded "feature" seems to stop.

dialabrain said: "Disable the Tiling options in System Settings > Desktop & Dock > Windows."

The exact option to disable is Desktop & Dock > Windows > Drag windows to menu bar to fill screen

Thanks dialabrain.

That does not show the original behavior of the green button from before sequoia.

optionkey down used to allow window resizing as a toggle: this way it was easy to fit a document exactly in its own window.

is there no one who knows if it is possible to turn it of in terminal??

That does not show the original behavior of the green button from before sequoia.

optionkey down used to allow window resizing as a toggle: this way it was easy to fit a document exactly in its own window.

is there no one who knows how to turn it of in terminal??

Thanks DB. I REALLY Hate when Apple changes stuff - we didn't ask them for, like auto expanding windows, adding grey stars to Albums... duplicating Music playlists1, etc... Whatever happened to having a 4 year old use the MAC? Now oeuvre gotta google your issue after you've suffered thru their wholly caused problems...