[Wayland-bugs] [Bug 93846] scrolling jump and movement threshold

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93846

--- Comment #2 from nicmus <glncst at live.it> ---
Yeah the size is ok though there is a little deviation of very few millimetres
from my measurement. (touchpad-edge-detector is able to detect the entire
resolution)

I further checked the behaviour with synaptics driver and also there I see that
small movements lead to no effective moving of the cursor, Now I can better
specify what makes my user experience different between the two drivers.
In synaptics the cursor speed depends on the velocity I'm moving the finger on
my clickpad. It feels like the resolution is changing along with the finger
velocity.
I.e. slow movement allows me fine positioning of the cursor, while fast
movements allows the covering of the entire screen. I'm experiencing a flat
behaviour instead under libinput. That is, cursor speed does not depends on the
finger velocity.
I tried to change acceleration options with xinput according to arch wiki page
"Mouse_acceleration" with no results at all.
Is this property not yet implemented? Or is it software disabled on my specific
clickpad?

The second problem is still in place. Scrolling leads to large jump.

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