16.04: Elantech touchpad not working on new laptop
I would suggest trying the libinput driver. It's much newer than evdev and synaptics and fixed some issues I had with the Elan touchpad on the computer I use. It also supports most of the hardware of other drivers supported, including some graphics tablets. Instructions:
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Install the package xserver-xorg-input-libinput
sudo apt install xserver-xorg-input-libinput -
Uninstall xserver-xorg-input-evdev
sudo apt remove xserver-xorg-input-evdev -
Uninstall xserver-xorg-input-synaptics
sudo apt remove xserver-xorg-input-synaptics Reboot and see if things work better.