eGalax touchscreen calibration

[Markamc]

ts_calibrate generates the following file: /etc/pointercal

the order of the values generated depends on whether swap is active or not i.e. the end value is 1 or 0 for swap or no swap

For swap order is:-
xscale xymix xoffset yxmix yscale yoffset scaler Xres Yres swap

For no-swap order is:-
xymix xscale xoffset yscale yxmix yoffset scaler Xres Yres swap

At the moment I ignore the xymix and yxmix values, these account for misalignment of touchscreen, which is maybe what you can see? The swap value is automatically generated when it detects the situation.

If you need to change the xoffset/yoffset values. The values are large integers, the software divides by the scaler constant of 65536. So if you know the offset value you used to have the equation (old_offset * 65536) should give you the correct setting.

Not sure why you have a different offset, I was trying to get it to work automatically, maybe if I include the skew values it will work better for you.