[Wayland-bugs] [Bug 105850] Clickpad drag lock sometimes activates

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105850

--- Comment #3 from Peter Hutterer <peter.hutterer at who-t.net> ---
BTN_LEFT on a clickpad is the physical switch underneath. If you don't get the
BTN_LEFT event (like in the sequence I pointed out) then the hw is still
considering itself down. Especially on the T440 it's hard to hold the touchpad
down without a finger down, given how it's designed (though there are narrow
dead areas on the edges).

> the click is occasionally arriving before the touch?

yeah, but that doesn't matter to us. In your case the problem is that the
BTN_LEFT value 0 does not arrive at all when the finger is released, see the
1.950450 event.

regarding the pen, let me re-explain: when the button is logically stuck and
you are not touching the touchpad, that's when I need you to click again with
the pen and check whether this triggers a sole BTN_LEFT 0 event. Because if so,
then it's the switch. If not, then we have some other issues with the firmware
most likely.

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