[Wayland-bugs] [Bug 91135] Two-finger scrolling jumpy with Synaptics touchpad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91135

--- Comment #30 from Peter Hutterer <peter.hutterer at who-t.net> ---
if you build the git tree, you have two tools to test libinput directly:
./tools/event-debug and ./tools/event-gui (the latter requires GTK+ headers
installed at configure time). Run either of them as root and look at the
output. event-debug is the same binary as libinput-debug-events and you'll see
button events float past as you tap. event-gui has a 3 button area at the
bottom that highlight whenever a button is pressed. run with:

sudo ./tools/event-debug --enable-tap

and of course make sure that the property is still set before running it.
see also: https://wayland.freedesktop.org/libinput/doc/latest/tools.html


finally, if you ran configure with the right prefix, you can just sudo make
install and run it, that'll overwrite your system copy. on fedora, it's:

./configure --prefix=/usr --libdir=/usr/lib64

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