I have the same problem in HP 14-ab019la..
"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: module verification failed: signature and/or required key missing - tainting kernel psmouse serio1: elantech: unknown hardware version, aborting..."
I try.. Ubuntu 14.04 LTS, 15.04 and 15.10 beta. whith all updates
I have the same problem in HP 14-ab019la..
"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: module verification failed: signature and/or required key missing - tainting kernel
psmouse serio1: elantech: unknown hardware version, aborting..."
I try.. Ubuntu 14.04 LTS, 15.04 and 15.10 beta. whith all updates