CodePudding user response:
1, install the driver: a lot of online, this article is about 3.5 save spi screen!!!!!!2, install the software:
1, sudo apt - get the install utouch
2, sudo apt - get the install xinput - calibrator
3, sudo xinput_calibrator (calibration twice only)
If you want to check, can the following
# rm/etc/pointercal (delete calibration file)
# reboot (restart the development board)
At this point to check
# rm/etc/pointercal (delete calibration file)
# reboot (restart the development board)
Can check again ~ at this time