Hello I just installed Elementay OS and I am running into a problem when using touchpad. My mouse point is shaky when I am using touchpad. My laptop is Dell Inspiron 3000.
This does not work: Shaky mouse pointer when using touchpad
Go to the app called "System Settings", then go to the option "Displays" at the hardware section. If you see a display called "Unknown Display" you can try to disable it and then click on the button Apply. Maybe this can solve your problem.