Comment 38 for bug 1746740

I've also got an L322X - and am experiencing this same issue, touchpad seems to lock up after some time, and is also impossible to click and drag with.

I've just installed a fresh Bionic system onto my machine, and have the latest updates. That did not seem to help.

I installed "xserver-xorg-input-synaptics" and now the touchpad seems to work fine when I use the Xorg session. I haven't tried the Wayland session.