Touchscreen (7") inaccurate

4noxx

Hello

i use RepServ 1.04 and the official Display (DSI Port) from the Raspberry Foundation.

https://www.amazon.de/gp/product/B014WKCFR4

Display works, i mean i ve a picture. but the calibration seems not right. if i press the mixer button, Repetier open Server Command.

display is rotated with lcd_rotate=2 (in boot/config.txt)

i mean i hadent this problems with my old setup (pi2 and RepServer 0.9)

4noxx

pi@RepetierServer:~ $ export DISPLAY=:0

pi@RepetierServer:~ $ xinput_calibrator

Calibrating standard Xorg driver "raspberrypi-ts"

        current calibration values: min_x=0, max_x=65535 and min_y=0, max_y=6553                           5

        If these values are estimated wrong, either supply it manually with the                            --precalib option, or run the 'get_precalib.sh' script to automatically get it (                           through HAL).

        --> Making the calibration permanent <--

  copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf' (/usr/s                           hare/X11/xorg.conf.d/ in some distro's)

Section "InputClass"

        Identifier      "calibration"

        MatchProduct    "raspberrypi-ts"

        Option  "MinX"  "64846"

        Option  "MaxX"  "-89"

        Option  "MinY"  "65137"

        Option  "MaxY"  "57"

        Option  "SwapXY"        "0" # unless it was already set to 1

        Option  "InvertX"       "0"  # unless it was already set

        Option  "InvertY"       "0"  # unless it was already set

EndSection

pi@RepetierServer:~ $

my file 99-calibration.conf

Section "InputClass"

        Identifier      "calibration"

        MatchProduct    "raspberrypi-ts"

        Option  "MinX"  "65003"

        Option  "MaxX"  "-205"

        Option  "MinY"  "64545"

        Option  "MaxY"  "-717"

        Option  "SwapXY"        "0" # unless it was already set to 1

        Option  "InvertX"       "0"  # unless it was already set

        Option  "InvertY"       "0"  # unless it was already set

EndSection

4noxx

found now for me  the solution. display need a transformation matrix

here my 99-calibration.conf

Section "InputClass"

        Identifier      "calibration"

        MatchProduct    "raspberrypi-ts"

        Option  "MinX"  "65003"

        Option  "MaxX"  "-205"

        Option  "MinY"  "64545"

        Option  "MaxY"  "-717"

        Option  "SwapXY"        "0" # unless it was already set to 1

        Option  "InvertX"       "0"  # unless it was already set

        Option  "InvertY"       "0"  # unless it was already set

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

EndSection

Repetier

Normally not required if you use the hardware screen rotation. But nowadays on pi config.txt allows 3 different ways to rotate the screen.