MBP 16 trackpad scrolling change since Catalina 10.15.4...

domsodidavid

macrumors regular
Original poster
Nov 7, 2015
104
35
Since the first public beta of Catalina 10.15.4 the trackpad/magic mouse scrolling has changed somehow.. It feels slower, with less inertia. Anyone else experienced the same behavior?
 

MrMuetze

macrumors newbie
May 24, 2013
10
3
I know exactly what you mean and it makes me furious. First thing I noticed after the update how slow and unwieldy the scrolling feels. I haven't really found many others reporting this issue or a fix even, but I keep looking. Maybe there are some settings that we can change via terminal to revert this change.
 
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domsodidavid

macrumors regular
Original poster
Nov 7, 2015
104
35
I know exactly what you mean and it makes me furious. First thing I noticed after the update how slow and unwieldy the scrolling feels. I haven't really found many others reporting this issue or a fix even, but I keep looking. Maybe there are some settings that we can change via terminal to revert this change.
Yes, it's drive me mad too.

What I've already tried, and mostly worked:

1. Edited the .GlobalPreferences.plist hidden file in ~Library/Preferences/
(Shift + Cmd + . to show hidden files)

[/I]
<key>com.apple.trackpad.scaling</key>
<real>0.875</real>
<key>com.apple.trackpad.scrolling</key>
<real>7</real>
[I]


[/I]
<key>com.apple.mouse.scaling</key>
<real>2.5</real>
<key>com.apple.scrollwheel.scaling</key>
<real>0.58</real>
[I]


It's not a solution, it's not great but aceptable.

2. In Smart Scroll pref pane, the settings below:

Screenshot 2020-03-26 09.04.58.png

What I've tried, and unusable:

Steer Mouse app
CursorSense
ControllerMate
Mouseaccelerationpref
USB Overdrive

I found that it's not a scrolling speed issue, rather some kind of acceleration issue, when you start the movement, you feel that it's not follow the movement of your fingers and it has a delay.

Please Apple if you read this, restore it to the previous setting, it's terrible!
 

MrMuetze

macrumors newbie
May 24, 2013
10
3
Yes it is most likely an acceleration/inertia issue. I doesn't ramp up as fast and slows down to fast in my opinion. I'm going to have a look at your suggestions. Thanks!

Edit: Just to make sure, I went into the Accessibility Settings and increased the scroll speed of trackpads by one tick. Have you tried this before? Not sure yet if that makes it feel better. But it does speed it up a bit.
 
Last edited:

MrMuetze

macrumors newbie
May 24, 2013
10
3
@Ritsuka absolutely, but I would also like to find a solution/fix that can be applied right now. If Apple changes this in a future update, that's good, but if we somehow fix it today, that would be even better. :)

Edit: @domsodidavid are you .plist changes supposed to be used together with Smart Scroll or should they work independently?

Edit2: I've opened a thread on reddit as well if you want to have a look there. No solutions just yet though. Handed in some feedback using the Assistant as well.
 
Last edited:
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MrMuetze

macrumors newbie
May 24, 2013
10
3
Yep, that is very fast 😅 I'm trying to reverse the change to the old default trackpad settings.
 

MrMuetze

macrumors newbie
May 24, 2013
10
3
Sry for the double post, but I just wanted to let everyone know that I have compared the values of "com.apple.trackpad.scrolling" in the ".GlobalPreferences.plist" file between this update and a previous version and sadly, they are identical. It appears that Apple has changed something deeper down in the system. :/
 
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domsodidavid

macrumors regular
Original poster
Nov 7, 2015
104
35
I think the same, it's not accidentally changed. Neither a bug. It's a decision, maybe some kind of unification between iOS and macOS, who knows, what is the cause behind... but I'm sure, that 99,99% of Mac users will never ever notice that.
 

MrMuetze

macrumors newbie
May 24, 2013
10
3
Yup, that seems to be the case, the scrolling in tvOS has changed as well, feels better there though. For now I've increased the scrolling speed on macOS to the second highest setting and it sort of gets the job done for me. At least the difference is not so drastic, that I can't adjust at all.
 

brundolf

macrumors newbie
Apr 4, 2020
1
0
I too am extremely upset by this. MacBooks used to have the best scrolling experience of any device I'd ever used, but now my hand physically hurts from using this new behavior over a full work day.

How do we report this and make sure Apple knows it needs to change? I tried to use the Feedback Assistant, but apparently you have to be a beta-tester, which I'm not.
 
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