I have a Dell Inspiron 15 (3558). Ever since I upgraded to Ubuntu, there have been problems where the touch-pad randomly jumps when using it. For example I could be scrolling up and the cursor would instantly jump to the top at the slightest touch. I lowered sensitivity in settings but that doesn't seem to help. I read a solution online where the touch-pad sensitivity seems to be fixed but the tap-and-click function doesn't work. I don't want to sacrifice the tap-click function for sensitivity. Here are the results of xinput:

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  • I've had jumpy touchpad issues on my HP and MSI laptops for a long time, yet it works fine in Windows. I gave up trying to solve it and found it much easier to just disable the touchpad and use a mouse. I'm interested to see if a working solution presents itself. – Dorian May 31 '18 at 17:32

I observe the behavior persists only when my laptop is plugged in. Found that one when I was looking through this link.

One temporary hack is by placing your hand on the keyboard or any metal part of your laptop to ground it.

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  • To me it happens even if the laptop is unplugged (XPS 13 here). Any other suggestions? – becko Feb 7 at 21:45

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