[Wayland-bugs] [Bug 106044] Unreliable tap-to-click on a DELL XPS 9370

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106044

--- Comment #4 from Peter Hutterer <peter.hutterer at who-t.net> ---
Problem in this one is the motion, yes. events that matter here:

E: 0.992120 0003 0036 0307      # EV_ABS / ABS_MT_POSITION_Y    307
E: 0.999293 0003 0036 0324      # EV_ABS / ABS_MT_POSITION_Y    324

This is a 17 unit movement, translating to a 1.4mm movement. Which is just
above the 1.3mm threshold. So yeah, you're just triggering the motion threshold
on the first event after touch down, converting the whole thing into pointer
motion. That's the source of the issue, I guess there are some heuristics we
can improve to make this less of an issue.

Note ahead: increasing the motion threshold makes the touchpad less responsive,
so that's not ideal either.

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