https://bugs.freedesktop.org/show_bug.cgi?id=106323

--- Comment #5 from Martin Wilck <[email protected]> ---
(In reply to Peter Hutterer from comment #4)
> did you try it? because the basic approach right now is: delta * factor.
> What the server does is delta * constant_deceleration * factor. So whether
> you add this to the factor or later doesn't really matter.

I think it does matter, because if we apply the factor "late", it's applied to
the maximum acceleration, too, which is bad. I don't think we should focus on
mimicking the behavior of evdev + X; rather we should figure out how to make
this device work nicely with libinput. And here we have the fact that the
device delivers strange/unusual raw data.

But you're right, I havent't had time to actually try yet.

> libinput debug-gui is the best way to test these things, it can be run from
> the builddir and the pointer is controlled by libinput only, so no need to
> restart between recompilations.

Ah, I didn't know that, thanks. I'll try.

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