Touchscreen coordinates problem

[anon89812132]

@nyanko

to random ones

Those will be ignored anyway, see how to calculate the matrix
Also, you have to use the libinput driver … even tho you might use the wacom driver for the Stylus part … But if you use the wacom driver, then this is the approach

In other cases you have to go with a config in /usr/share/X11/xorg.conf.d/99-touch_calibration.conf for example and have for 90 degrees:

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

or for 180 degrees

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

You have to see also if you rotate it clockwise or counterclockwise … in some cases that goes with the stylus too.

Stylus pen tilt direction incorrect on notebook touch screen

Hello, According to that wiki, you use the "TransformationMatrix" "0 1 0 -1 0 1 0 0 1" and that is for when you should rotate the screen to the right (clockwise 90 degree). Otherwise if left (counterclockwise 90 degree) you have to use "TransformationMatrix" "0 -1 1 1 0 0 0 0 1" Since Krita is Qt application but you run Cinnamon (gtk+) based DE, and the options/settings for stylus and tablet are more limited, there might be a “disconnect” there … hard to tell. See if by adding export QT_XCB…