[Wayland-bugs] [Bug 91475] Gestures vs scrolling on semi-mt touchpads

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91475

--- Comment #7 from Mantas Mikulėnas <grawity at gmail.com> ---
(In reply to Hans de Goede from comment #6)
> Can you try changing these lines in
> libinput/src/evdev-mt-touchpad-gestures.c (around line 200):
> 
>         /*
>          * Semi-mt touchpads have somewhat inaccurate coordinates when
>          * 2 fingers are down, so use a slightly larger threshold.
>          */
>         if (tp->semi_mt)
>                 move_threshold = TP_MM_TO_DPI_NORMALIZED(4);
>         else
>                 move_threshold = TP_MM_TO_DPI_NORMALIZED(2);
> 
> To:
> 
>         move_threshold = TP_MM_TO_DPI_NORMALIZED(2);
> 
> Then re-build libinput, install the new version and see if that solves your
> 2fg scrolling problems?

Scrolling seems to be much better, yes. (Played with tools/event-gui, it still
recognizes both scroll & pinch correctly.)

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