[Wayland-bugs] [Bug 98839] Somehow conditionalize hysteresis (hardware black/whitelist, device property introspection, user-exposed setting, etc)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98839

--- Comment #34 from Daniel van Vugt <daniel.van.vugt at canonical.com> ---
I've got a plan to devote Ubuntu Desktop Team time (myself) to it starting
early next year. Of course it would be great if someone else committed
improvements earlier than that.

In my case I find many laptops don't respond to finger movement for almost the
first 5.0mm or so (not 0.5mm :). Comparing to macOS or a good Chromebook (like
a Dell 7310) it appears those devices with a great touchpad experience don't
really employ noticeable hysteresis at all.

Forgive me if I missed it, by why do we have hysteresis?.. As I understand it,
if one finger is touching then you want maximum precision (zero hysteresis).
And if multiple fingers are touching then the cursor should simply stop moving
as gestures take over. So I don't yet understand why hysteresis is there at
all. Although I can also see ways to improve it if we can't remove it.

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