Please try VT switching to VT4 (Ctrl+Alt+F4), log in and retest with 'evtest'. If you continue to get no results then that's a kernel bug. Because Wayland and libinput are not part of the equation when you're testing the kernel directly.
P.S. Also check if your laptop keyboard has a function key for disabling/enabling the touchpad. It might simply be disabled in hardware (for reasons unknown). ** Package changed: libinput (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Fix Released => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726934 Title: Elantech touchpad unresponsive in Ubuntu 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1726934/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs