Comment 2 for bug 1163107

Note that "xinput_calibrator" is a bit more verbose and warns me:

Warning: multiple calibratable devices found, calibrating last one (Serial Wacom Tablet touch)
 use --device to select another one.
Calibrating standard Xorg driver "Serial Wacom Tablet touch"
 current calibration values: min_x=0, max_x=2640 and min_y=0, max_y=1630

With the default settings, it gives me a very wrong result resulting in a similar area as reported.

By using "xinput_calibrator --device 15" I get proper values: "-1232 -523 26217 16525".

My best guess is that the Wacom calibration through the control centre is using the wrong input device.