[Wayland-bugs] [Bug 100533] 3 finger swipe detected as pinch

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100533

Peter Hutterer <peter.hutterer at who-t.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED
            Summary|Add 3 finger swipe gesture  |3 finger swipe detected as
                   |                            |pinch

--- Comment #4 from Peter Hutterer <peter.hutterer at who-t.net> ---
right, so the touchpad only supports 2 finger touch positions (max slot is 1,
i.e. 2 slots), the third finger can be detected but not placed on the touchpad.
This will improve with the RMI4 patches scheduled for the kernel (you may then
run into Bug 99830).

For now, what's likely happening here is that the first two fingers detected
are vertically too far apart (there's a threshold), so libinput guesses that
it's a pinch gesture and then goes with that since it cannot tell where the
third finger is. This is fixable, but I probably won't have time for it in the
near future, let me know if you want to have a go at this.

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