[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 #24 from Peter Hutterer <peter.hutterer at who-t.net> ---
(In reply to Nate Graham from comment #22)
> Acceleration and hysteresis are different problem spaces. I sincerely doubt
> that hysteresis-related complaints will disappear if you improve the
> acceleration.

not all of them, but some of them may.

> I experience the problem and confirm that rolling my finger half a
> millimeter results in no cursor motion at slow speed, and ad moderate speed
> the cursor seems constrained to the X or Y axis exclusively.

that bit needs to be fixed then. but really, half a mm is.. tiny, I'm not sure
how much movement you'd expect there.

> I can tell you that this happens, and that disabling hysteresis makes
> the problem disappear.

yeah, then we need someone (you :) to look into how to fix this. I still don't
think just removing the hysteresis is a good idea, especially when it's clear
that there's some other bug that snaps it to the axes. Let's fix it first so it
works as intended, then we can look at it again.


(In reply to Tom Vincent from comment #23)
> This makes sense. What information do you need? Would another evemu
> recording be useful?

not really, especially because ETIME. I need someone to look at this and figure
out what's going on and how to fix it.

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