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Calibrate the touch screen 2016-08-31
How to calibrate the touch screen
1、 Install Xinput
You need to install the LCD driver first beforce this Step,
follow the document <How to install the LCD driver (En).pdf>
cd /boot
cd LCD-show
sudodpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb
2, execute the command of the touch calibration:
DISPLAY=:0.0 xinput_calibrator
The screen will pop up touch calibration display, and now use the touch pen click successively four calibration
points to complete the calibration.
New touch parameters would be shown after the calibration, as follows:
3, modify the touch parameters after calibration and save
sudonano /etc/X11/xorg.conf.d/99-calibration.conf
As following:

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