Comment 2 for bug 1651635

Hello
  Thanks for the detail bug description and it is so helpful for digging the root cause through a correct direction.
  I also tried to reproduce this issue on XPS 13 (9360) laptop, the result is a little bit different, it can't move the X pointer after palm access to touch pad, and after that, 2 or 3 finger gestures don't work either. But it seems the system can recovery after a while or if switch the working window sometimes. Any way, the problem is confirmed exist and I personally think it is a driver related issue, since touch screen works fine, and the bottom half of pointer moving process touchpad triggered is the same as touch screen did. So the problem is happened in the top half of the pointer move process through X, it is the touchpad driver's responsibility to report pointer moving event though libinput to Xserver, and after that Xserver can generate the following commands to X graphic driver to show the move action to user.
  Sorry for the inconvenience you encounter in the work during using the 9360 xp13. We will update the touch pad driver ASAP.