I have the exact same problem as him
"I have the same problem in HP 14-ab102tx
"tap to click, right click, and left click work. Mutitouch, disable touchpad with keyboard activity, as well as sensitivity settings don't work.
Trackpad, via xinput, detect as a "PS/2 Elantech Touchpad"
dmesg | grep psmouse results: psmouse serio1: elantech: unknown hardware version, aborting..."
I have the exact same problem as him
"I have the same problem in HP 14-ab102tx
"tap to click, right click, and left click work. Mutitouch, disable touchpad with keyboard activity, as well as sensitivity settings don't work.
Trackpad, via xinput, detect as a "PS/2 Elantech Touchpad"
dmesg | grep psmouse results:
psmouse serio1: elantech: unknown hardware version, aborting..."