I now tried installing the latest kernel 5.6.7 from https://kernel.ubuntu.com/~kernel-ppa/mainline/ and the problem still exists.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1873677 Title: Lenovo Ideapad S145 - Touchpad not recognized at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873677/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs