calibrator

xinput_calibrator --device 8
Calibrating EVDEV driver for "TSD Touchsystems TSD USB Touchscreen" id=8
	current calibration values (from XInput): min_x=184, max_x=3932 and min_y=184, max_y=3932

Doing dynamic recalibration:
	Setting new calibration data: 102, 1150, 280, 1108


--> Making the calibration permanent <--
  copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf'
Section "InputClass"
	Identifier	"calibration"
	MatchProduct	"TSD Touchsystems TSD USB Touchscreen"
	Option	"Calibration"	"102 1150 280 1108"
EndSection