I'm new using KDENeon. I have problem with touchpad. It doesn't work. When I opened the touchpad manager, it said that "No Touchpad Found". Can somebody help me?

What does lspci -k say? Is it listed? Does it have a driver?

Is synaptic installed?

Did it work beforehand?

What packages were updated/added/removed?

Just a few questions to shed a bit more light on the mysterious disappearance