The touchscreen may only work randomly or it may work always but not displaying correctly. Other users complain about their displays fading during reboot or shut down. Read this guide to the end to learn how to fix your Raspberry Pi touchscreen when it’s not working.
How do I repair my Raspberry Pi touchscreen? It is not working
1. Update Raspbian
The quickest way to resolve issues related to the Raspberry Pi touchscreen not working is to update your software. Most times, the Raspberry Pi touchscreen issues come from outdated software or an unstable update. Below is the command you must run in order to update Raspbian. This command will also undo any possible update that was unstable. sudo apt update sudo apt install –reinstall libraspberrypi0 libraspberrypi-{bin,dev,doc} raspberrypi-bootloader
2. Confirm that the Raspberry Pi detects the touchscreen
After updating Raspbian following the guide in the previous step, if the Raspberry Pi touchscreen is still not working, the problem may be that the device fails to detect the touchscreen. Run the following command to confirm the touchscreen detection: dmesg | grep -i ft5406 If you see results looking like the lines below, then you can be sure that the Pi touchscreen is being detected. [ 5.224267] rpi-ft5406 rpi_ft5406: Probing device [ 5.225960] input: FT5406 memory based driver as /devices/virtual/input/input3 Also, if the touchscreen is detected, you will notice in /proc/cmbline that the values of fbheight and fbwidth will be equal to the screen resolution (480 x 800). To confirm this, run the following command: cat /proc/cmdline | grep bcm2708_fb
3. Disable overscan
4. Fix upside-down Raspberry Pi touchscreen display
5. How to fix Raspberry Pi display that fades while rebooting or shutting down
If the display of your Pi blacks out when you reboot or power off the unit, then, first of all, confirm that it’s running on the latest software update. The next step is to check that an SD card is inserted into your Pi properly. This Raspberry Pi touchscreen issue may also come about when the ribbon between the display and the Raspberry Pi isn’t seated firmly. Alternatively, if the Raspberry Pi display turns all white, then the usual suspect is that the ribbon cable between your driver board and the LCD is not firm. Raspberry Pi touchscreen not working could be a result of different software and hardware problems. In this guide, we’ve explored the most common Raspberry Pi touchscreen issues and proffered working solutions to fix them quickly. Are you facing a Raspberry Pi touchscreen issue that we didn’t address here? Let us know in the comments below.
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