The previously posted Juan workaround also worked for me too on the Dell
XPS 15 running Ubuntu 16.04 LTS. Thank you all. :-)
Patch system first, then do the following fixes posted by Juan and
others (see previous posts).
sudo apt-get install xserver-xorg-input-libinput
sudo apt-get remove --purge xserver-xorg-input-synaptics
vim /usr/share/X11/xorg.conf.d/90-libinput.conf
InputClass #Inside the sections for pointer and touchpad
Option "NaturalScrolling" "true" #note I used this
Option "AccelSpeed" "-0.5" #note I tried this - made mouse too slow
- commented it.
Reboot.
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https://bugs.launchpad.net/bugs/1574667
Title:
Mouse pointer occasionally jumps to the bottom-left corner
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