I have a Thinkpad X1 Tablet running Ubuntu 18.10. Using two fingers to scroll, zoom around, etc works great (in e.g. Chromium) when running under XWayland, but only a single touch point seems to be recognized under Xorg.
xinput test-xi2 <device-id> shows TouchEvent's on Wayland, but ButtonEvent's on Xorg, so it appears that my touchscreen is configured wrong and Xorg is interpreting the touchscreen as a mouse.
Any idea how to configure Xorg to view the touchscreen as, well, a touchscreen?