touchscreen yaxis direction swapped

RAyWB

Hi,

may be a silly question but I´m Linux noob.

i use a ELO 15" vga touch display (one of these you´ll find in some supermarkets) and y-axis of touchscreen is swapped.

in raspbian i can use xinput_calibrator to swap the axis, also managed to download on the repetier image.

but how can i get to start the calibrator?

Or any other possibility?

(the only one i can imagine is to use the display on raspian , note the settings and transfer manually to the repetier image)

any help is welcome

Repetier

Login using ssh
export DISPLAY=:0
xinput_calibrator

display could also be :1 in some cases. Once you have set the display you can run any command using display from commandline and it will show on the display you have set.

RAyWB

Ok,thanks, that moves me one step forward

RAyWB

found some time to read and try a couple of things and ended up here:

https://wiki.ubuntu.com/X/InputCoordinateTransformation#Setting_the_Coordinate_Transformation_Matrix

but  how can i make that  permanent respectively automatic executed?

sorry for noob question, I´m still beginner on Linux

RAyWB

Ok, solved

for my case (display rotated 270° ) it was just to add

Option "TransformationMatrix" "1 0 0 0 -1 1 0 0 1"

in file /usr/share/X11/xorg.conf.d/99-calib.conf

seems to be different since Server change from debian jessie to stretch