xinput-calibrator工具：sudo apt-get install xinput-calibrator
xinput工具：sudo apt-get insatll xinput
2、校准实例（1）查看触摸设备id：xinput_calibrator --list
上面可知：device name：ILITEK ILITEK-TP，device id：11
（2）校准触摸设备：xinput_calibrator -v --device
此处为xinput_calibrator -v --device 11
（3）在显示的屏幕触摸校准页面进行页面校准，终端会输出屏幕校准后的数据
（4）将屏幕校准数据根据提示复制至/etc/X11/xorg.conf.d/目录下的99-touchscreen-evdev.conf文件中，部分发行版系统下的路径为/usr/share/X11/xorg.conf.d/。如果没有99-touchscreen-evdev.conf文件可手动创建一个。
Section "InputClass"
Identifier "calibration"
MatchProduct "ILITEK ILITEK-TP"
Option "MinX" "20207"
Option "MaxX" "20343"
Option "MinY" "52844"
Option "MaxY" "54101"
Option "SwapXY" "1" # unless it was already set to 1
Option "InvertX" "0" # unless it was already set
Option "InvertY" "0" # unless it was already set
EndSection
（5）重启系统校准生效
3、相关问题（1）屏幕旋转后校准未跟着旋转的问题
- 屏幕顺时针旋转270度时，添加Option "TransformationMatrix" "0 -1 1 1 0 0 0 0 1"至99-touchscreen-evdev.conf，文件内容如下
Section "InputClass"
Identifier "calibration"
MatchProduct "ILITEK ILITEK-TP"
Option "MinX" "20207"
Option "MaxX" "20343"
Option "MinY" "52844"
Option "MaxY" "54101"
Option "SwapXY" "1" # unless it was already set to 1
Option "InvertX" "0" # unless it was already set
Option "InvertY" "0" # unless it was already set
Option "TransformationMatrix" "0 -1 1 1 0 0 0 0 1"
EndSection
- 屏幕顺时针旋转180度时，添加Option "TransformationMatrix" "-1 0 1 0 -1 1 0 0 1"至99-touchscreen-evdev.conf
- 屏幕顺时针旋转270度时，添加Option "TransformationMatrix" "0 1 0 -1 0 1 0 0 1"至99-touchscreen-evdev.conf
（2）校准不准的问题
- 上下相反，比如点击左上角，反馈至左下角，类似于Y轴方向改变
99-touchscreen-evdev.conf文件中Option的InvertY值："0"改为"1"
- 左右相反，比如点击左上角，反馈至右上角，类似于X轴方向改变
99-touchscreen-evdev.conf文件中Option的InvertX值："0"改为"1"
- XY相反，比如点击左上角，反馈至右下角，类似于X、Y轴方向改变
99-touchscreen-evdev.conf文件中Option的SwapXY值："0"改为"1"
- 边缘偏移，比如点击最外侧，反馈却在旁边，说明位置点未设置准确
修改99-touchscreen-evdev.conf文件中Option的MinX、MaxX、MinY、MaxY值，修改尝试一下
