Ubuntu 16.04.3 LTS Touchpad not work at Asus X454L notebook

i installed ubuntu 16.04.3 LTS from 15.04 after installed 16.04.3 laptop touchpad not worked at all.

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the Finding Help page.