Comment 21 for bug 1746740

OK then. We can either wait for you to install Ubuntu-proper, or you can progress the issue with libinput developers immediately by going here:

  https://bugs.freedesktop.org/enter_bug.cgi?product=wayland&component=libinput

Please let us know when you have either tested xserver-xorg-input-synaptics, or have logged an upstream bug using the above link.