[Wayland-bugs] [Bug 101139] Acceleration still too slow with medium finger movements

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101139

--- Comment #4 from Greg Reichow <gdr3941 at me.com> ---
Created attachment 135510
  --> https://bugs.freedesktop.org/attachment.cgi?id=135510&action=edit
Patch for Macbook Pro 8,2 testing

Patch from libinput 1.9.1 attached

Changes:
1. Added thumb detection based on size, improves detection on MacbookPro
2. Raised height at which thumb detection is triggered (was 15%, now is 40% up
from bottom).  This better matches Apple and the mtrack driver.
3. Lower scroll lock distance threshold
4. New Apple MacbookPro acceleration profile based on MacOS profiling
5. Fixed two finger click to activate right mouse button instead of middle
6. Disabled some gestures that were causing problems
7. Slowed down scrolling speed slightly (may not be working)

NOTE:  The new acceleration profile is only triggered if the touch device
registers as EVDEV_MODEL_APPLE_TOUCHPAD.  This worked for my Macbook Pro 8,2.

The new acceleration profile is pretty fast relative to the standard libinput
settings.  The normal mouse speed setting (for example in Gnome settings) can
be used to adjust the speed.  It adjusts both the speed and acceleration ramp
up.  

All of the other changes are general and may cause problems for non-Apple
products.  I have only tested this on my MacbookPro 8,2.

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