Input Device Calibration

Touch Screen

If you need to calibrate the touch screen, you can use the WESTON_TOUCH_CALIBRATION environment variable.

The following code block provides an example.

# /root/run_weston.sh
export WESTON_TOUCH_CALIBRATION="1.013788 0.0 -0.061495 0.0 1.332709 -0.276154"

Calibration Tool

You can also use the Weston calibration tool weston-calibrator to obtain the calibration parameters. After running this tool, a number of random points will be generated, and then click them in sequence to output the calibration parameters.

The following code block provides an example.

Final calibration values: 1.013788 0.0 -0.061495 0.0 1.332709 -0.276154

Or you can use the new Weston touch calibrator: weston-touch-calibrator.

The following code block provides an example.

# /etc/xdg/weston/weston.ini
[libinput]
touchscreen_calibrator=true
calibration_helper=/bin/weston-calibration-helper.sh