Apple Magic Mouse To Support High Resolution Scrolling With Linux 5.15

[phoronix]

Phoronix: Apple Magic Mouse To Support High Resolution Scrolling With Linux 5.15

For those that find themselves using an Apple Magic Mouse, the finger-sliding scrolling experience should be improved come Linux 5.15...

https://www.phoronix.com/scan.php?page=news_item&px=Magic-Mouse-High-Res-Linux-5.15

[carewolf]

To experience it, we need the support in libinput which is still MIA.

[tildearrow]

Apple touchpad support using libinput is kind of broken...

When I try to use it, sometimes it will stop "tracking" my finger.
It appears that if libinput finds a finger size that is too small or too big (this could happen spontaneously e.g. from clicking or click-dragging), it will unregister the finger. It gets very annoying.

[holunder]

Apple touchpad support using libinput is kind of broken...

When I try to use it, sometimes it will stop "tracking" my finger.
It appears that if libinput finds a finger size that is too small or too big (this could happen spontaneously e.g. from clicking or click-dragging), it will unregister the finger. It gets very annoying.

I cannot confirm that on a Magic Trackpad 2.

[tildearrow]

I cannot confirm that on a Magic Trackpad 2.

This is on the touchpad of the 2012 MacBook Pro.

Edit: It appears this issue is caused by a poor palm detection algorithm.
A workaround is to change line 10 in /usr/share/libinput/50-system-apple.quirks:

AttrPalmSizeThreshold=800

to

AttrPalmSizeThreshold=8000

This may break palm recognition, but it will fix the issue (I don't place my palm on the touchpad anyway).