Comment 39 for bug 799202

I can confirm that on my Wacom Bamboo Pen & Touch the behaviour is exactly the same as j-b-m. The only addition being that I get the huge rectangles only when I stop moving the pen (but keep it touching the surface).

My tablet probably does not provide tilt information so could you try the following.

First run "xinput list" which shows you all input devices. Check which number it has given to your stylus. Then do "xinput list <idnum>". This shows you which valuators provide the tilt information. These are probably 3 and 4.

Then run "xinput test <idnum>" and move your stylus. What values do you get for tilt axes?

No matter what I do, I can't get any other value than 0 for these. Which would indicate that the huge rectangle values are generated somewhere outside X.