Hey guys,
I have some problem here with my touchpad.
Last time I've change some of the scroll slider touchpad, and It is working properly. But, because the scroll gesture is too fast and I think it's time to change back.
Then I change the touchpad settings back to default. And now I've got some problem with my touchpad.
I can't tap to click with single finger or dual finger.
Just tap to click that I can't do. while the everything is fine,

My System:
Dist: KDE Neon 5.10
Laptop: Lenovo G40-70
Touchpad: ELAN Touchpad (on Windows)