[Wayland-bugs] [Bug 104828] Wobbly AlpsPS/2 ALPS DualPoint TouchPad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104828

--- Comment #31 from Hi-Angel <Hi-Angel at yandex.ru> ---
(In reply to Hi-Angel from comment #30)
> (In reply to Peter Hutterer from comment #29)
> > fwiw, there is a github branch listed in bug 105108 that's worth testing.
> > 
> > as for improvements: either file a bug here or an RFC (and patch if
> > possible) to the wayland-devel lists.
> 
> 
> FWIW I just tested the branch, and I do see sometimes cursor jitters. The
> wobbling is infrequent but have a big distance.
> 
> I think it's because fuzz value both for x and y is "8",  whereas
> ½resolution have been 24 for x, and 40 for y. So, now small wobbling is
> being filtered out, whereas the biggest value don't.

Ok, I just commented out whole code section assigning fuzz values, and assigned
instead ½resolution (which is x=24, y=40 for me), and although jitter
disappeared, I see sometimes small cursor jumps. I think this is caused by some
changes in hysteresis algo.

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