Apparently Ubuntu has some problems with the kernel integration and more modern hardware. We installed these operating systems: Ubuntu 18.04 LTS, Ubuntu 19.10, Ubuntu 20.04, and also CentOS 8.1.1911, but the touch pad does not work on this Lenovo ThinkBook 14-IML.
We tried kernel version updating, and Gnome Tweaks ukku installed in Tweaks also checked all the settings.
Twice cross checked Synaptics installed or no improvement.
installation done after that also no improvement.
ukuu --install-latest also done (Ubuntu Kernel Update Utility)
Upgrading the kernel to versions 5.5 and 5.5.7 using UKUU, which did not solve the problem.
We checked all firmware updates available that also couldn't succeed.
We tried all possibilities and couldn't succeed.
How may we troubleshoot this further to solve the touchpad failure?