Comment 57 for bug 799202

The reason Krita fails is that it uses the high resolution location and not cursor location.

High resolution location evaluation is broken whenever the X server does not send both X and Y coordinates.

Thus the valuator code is still wrong somehow.

I have pushed a hack fix to the PPA that just drops all incoming events that don't have both an X and a Y coordinate specified.

Please test it out once it finishes building.

It may cause other interesting bugs, but at least we should be able to prove conclusively where the real bug is.