Thank you for your bug report.
I believe that this happens due to the wacom lines in /etc/X11/xorg.conf when using the nvidia binary driver (and for whatever reason only shows up under KDE).
robert-hopt:
Could you back up your /etc/X11/xorg.conf file and remove the Section "InputDevice" areas that contain Drive "wacom" and see if there is any difference?
Thank you for your bug report.
I believe that this happens due to the wacom lines in /etc/X11/xorg.conf when using the nvidia binary driver (and for whatever reason only shows up under KDE).
robert-hopt:
Could you back up your /etc/X11/xorg.conf file and remove the Section "InputDevice" areas that contain Drive "wacom" and see if there is any difference?
Setting to needsinfo pending reply from robert.