Hi folks,
I was able to alleviate this issue to a large degree by the following
change:
edit /usr/lib/X11/xorg.conf.d/10-synaptics.conf
add the line:
Option "JumpyCursorThreshold" "90"
to the area starting with:
Section "InputClass"
Identifier "touchpad catchall"
I still get a few jumps (but a lot less, and they are short jumps (apparently
below the threshold)). Probably that value of 90 could be reduced until it
starts to affect regular movement.
--
erratic cursor movement with multi touch
https://bugs.launchpad.net/bugs/503944
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