Q:

calibrate touch screen (Raspberry PI 2 b+)

I have the 7 Inch TFT Touch Screen LCD Monitor For Raspberry Pi + Driver Board HDMI VGA 2AV calibrated, but every time after the restart I have to calibrate it new.
Is there a way that he remembers it.
(Sorry for my bad english)

A:

You need to store calibration data in /usr/share/X11/xorg.conf.d/99-calibration.conf which you got from xinput_calibrator.
Here, follow these steps.

Use xinput_calibrator utility.
copy the output, calibrator gave after calibration.
sudo nano /usr/share/X11/xorg.conf.d/99-calibration.conf
Paste the data
ctrl + x, yes to save.
sudo reboot to make it effective.

It should be done by now. :)
Hope it helps.

