Comment 110 for bug 1181666

When this happens, my desktop no longer accepts keyboard input as well.

I happens whenever I interact with the touch screen using my fingers.

If I do not use the touchscreen, and I stick to the touchpad, keyboard, and mouse, I do not have this issue.

When this happens, I can still interact with the topbar and with the Ubuntu Dock. The topbar and the Ubuntu Dock ccept all of my user inputs using all inout devices (mouse, touchpad, touchscreen, keyboard). But the desktop and all windows on the desktop stop accepting input (as if they are not getting the mouse focus).

$ gnome-shell --version
GNOME Shell 3.26.1

$ uname -r
4.14.1-041401-generic

$ lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful