I tried that like described here: https://askubuntu.com/a/963779/34298
And installing the latest mainline Kernel 14.4-rc4 will get the Touchpad running, but it also adds a new bug: IP4 is not running with the new Kernel on the Lenovo 720-15IKB: https://unix.stackexchange.com/questions/397708/get-ip4-running-with-kernel-4-14-rc4
I tried that like described here: https:/ /askubuntu. com/a/963779/ 34298
And installing the latest mainline Kernel 14.4-rc4 will get the Touchpad running, but it also adds a new bug: IP4 is not running with the new Kernel on the Lenovo 720-15IKB: https:/ /unix.stackexch ange.com/ questions/ 397708/ get-ip4- running- with-kernel- 4-14-rc4