Maybe rebooting is required to make calibration active.
Rpi touch screen calibration.
Hdmi cvt 800 480 60 3 0 0 0 hdmi group 2 hdmi mode 87 hdmi drive 1.
Then the new calibration data will be displayed in the terminal as shows below.
Now enter sudo reboot at the command prompt to reboot and you should be all set to explore the raspbian desktop on your lcd touch screen.
You can create a 99 calibration conf file to save the touch parameters not necessary if file exists.
Click the points one by one to finish the touch calibration.
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Install the software on the terminal enter.
Power on your raspberry pi and open terminal run this command.
Go at the bottom of the file and paste these settings.
Press ctrl c to stop the test.
Please get these data for future use.
Sudo dpkg i b xinput calibrator deb.
Using a stylus is suggested so you get a precise touch.
Download the xinput calibration software copy it to your raspbery pi.
Sudo tslib fbdevice dev fb1 tslib tsdevice dev input touchscreen ts calibrate.
You will want to calibrate the screen once but shouldn t have to do it more than that.
Open terminal and input.
Drag your finger or stylus around the screen to test the accuracy of the calibration.
After calibration you will get the following.
Click the men button on the task bar choose preference calibrate touchscreen.
On the terminal enter.
Follow the directions on the screen touching each point.
Raspberry pi 7 inch touch screen calibration.
Power off and connect your raspberry pi to your new 7 inch touch screen display.
After running these commands there will be a prompt for four point calibration shown in the lcd screen.
Turn your raspberry pi into a touch screen tablet infotainment system or standalone device.
Or select menu preferences calibrate touchscreen.
You need to click 4 points step by step to calibrate.
If necessary run ts calibrate again to improve the calibration.
Finish the touch calibration following the prompts.
We need to install xinput calibrator to calibrate the gen4 4dpi.
Touchscreen drivers with support for 10 finger touch and an on screen keyboard will be integrated into the latest raspberry pi os for full functionality without a physical keyboard or mouse.