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As the title suggests, I need to rotate the touch input on a DSI display.

I am successful in rotating the input with this entered into the terminal.

xinput set-prop 'seeed-tp' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1

I need this to happen on boot.

I have read that adding them to ~/.xsessionrc and or ~/.xinputrc is the right thing to do

However I do not know where .xsessionrc OR .xinputrc are located, and even if I did, I do not know how to add a command to those files to make them work.

Please advise for the total noobs please.

me

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  • Which graphics environment? Gnome/KDE/Xfce4 ... Because you might be able to add that to your startup scripts from the graphical interface.
    – Eduardo Trápani
    May 20, 2022 at 16:51
  • Luckily as a noob I do know how to do that... . sudo update-alternatives --config x-session-manager * 0 /usr/bin/startlxde-pi 90 auto mode
    – HelloMrMeseeks
    May 20, 2022 at 18:15

1 Answer 1

Reset to default
2

The answer is as follows:

navigate to :

/usr/share/X11/xorg.conf.d

In that folder there should be several config files. Reading these files gives you an idea what should be placed into your own custom config.

Make a custom config by opening the terminal in that folder.

sudo nano 99-configuration.conf

in that file you'll need this:

Section "InputClass"
    Identifier  "calibration"
    MatchProduct    "your product here"
    Option "TransformationMatrix" "1 0 0 0 1 0 0 0 1"
EndSection

You can get the "your product here" by typing:

xinput list

however in my situation, that configuration only applies when the terminal is opened. Very strange behavior.

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