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docs: add an alternative to calibration

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alfrix 2022-08-01 22:47:01 -03:00
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commit f37a6b579f
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docs/Hardware.md
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@ -100,6 +100,22 @@ To make this permanent, modify the file `/etc/udev/rules.d/51-touchscreen.rules`
```sh
ACTION=="add", ATTRS{name}=="<device name>", ENV{LIBINPUT_CALIBRATION_MATRIX}="<matrix>"
```
As an alternative if the above doesn't work:
edit /usr/share/X11/xorg.conf.d/40-libinput.conf
for example:
```sh
Section "InputClass"
Identifier "libinput touchscreen catchall"
MatchIsTouchscreen "on"
MatchDevicePath "/dev/input/event*"
Driver "libinput"
Option "TransformationMatrix" "0 -1 1 1 0 0 0 0 1"
EndSection
```
More info about input transformation can be found in:
* [Ubuntu wiki InputCoordinateTransformation](https://wiki.ubuntu.com/X/InputCoordinateTransformation)