I have confirmed that my waltop penpad works fine with gimp and my paint. Apparently I am too dense to figure out hour to make pressure work with inks cape. Regardless there is no jumping to top or left with that device.

On Feb 14, 2013 6:50 AM, "Matt Harrison" <matthewharrison@gmail.com> wrote:
On Thu, Feb 14, 2013 at 6:46 AM, Nikolai Kondrashov <spbnick@gmail.com> wrote:
> On 02/14/2013 03:38 PM, Matt Harrison wrote:
>> Ok, here's evtest output (I assume you meant that instead of "xinput
>> test"?) when it jumped during inkscape. Also screenie of jumping.
> Thanks, this can also help, but I meant "xinput test ID" output, where ID is
> the ID of the tablet pen device.

Here you go (output with inkscape jump to upper left corner).