[Wayland-bugs] [Bug 103017] 2 finger scroll is causing right click at the end

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103017

--- Comment #8 from L Holland <lucian+freedesktop at symposion.co.uk> ---
FWIW, I believe that I'm also seeing this issue - or one very close to it - on
Arch Linux. I'm on a Lenovo Thinkpad T440p, running GNOME 3.26 under Wayland
1.14.0-1, libinput 1.8.3-1. Kernel is 4.13.5-1-ARCH.

Whenever I enable tap-to-click (which I hugely prefer since I have a clickpad
and am an ex-Mac user) I get an unusable number of spurious right and middle
clicks when I two-finger scroll. If I'm super-careful about exactly how I place
my fingers on the touchpad, how I scroll etc, then I can generally just about
avoid these - but as soon as I go back to using the thing naturally I end up
right/middle clicking all over the place. Quite often I get dozens of click
events in a row during scrolling which can e.g. result in a huge number of tabs
being opened in my browser. It makes tap-to-click essentially unusable.

I never had this problem with this touchpad under Mint Cinnamon when using the
Synaptics driver - but the palm detection was considerably inferior and I'd
like to be part of the future direction of Gnome/Wayland if possible.

udev info:
P: /devices/rmi4-00/input/input16/event14
N: input/event14
E: DEVNAME=/dev/input/event14
E: DEVPATH=/devices/rmi4-00/input/input16/event14
E: ID_BUS=rmi
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=66
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_TOUCHPAD_INTEGRATION=internal
E: ID_INPUT_WIDTH_MM=97
E: LIBINPUT_DEVICE_GROUP=1d/6cb/0/0:rmi4-00
E: MAJOR=13
E: MINOR=78
E: SUBSYSTEM=input
E: USEC_INITIALIZED=3411945

modalias:
dmi:bvnLENOVO:bvrGLET80WW(2.34):bd07/23/2015:svnLENOVO:pn20AN006NUS:pvrThinkPadT440p:rvnLENOVO:rn20AN006NUS:rvr0B98401WIN:cvnLENOVO:ct10:cvrNotAvailable:

Let me know if you want me to do an evemu_record for my machine as well. From a
user perspective, it just feels like click events immediately after two-finger
scrolling should be ignored, but I've no doubt that it's more complicated than
that!

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