Some customers have previously reported seeing vertical lines on their official Raspberry Pi 7" Touchscreen Display.
There are a few things to check if you experience this:
- Turn your Raspberry Pi off. Remove and re-fit the ribbon cable to your Raspberry Pi DSI connector. A slightly loose ribbon cable is the most common reason for touchscreen issues!
- Make sure you're only using two of the GPIO wires to pass 5V and GND to the display (you should not connect the SDA/SCL wires as these are no longer required)
We only recommend the official Raspberry Pi Power supplies when using the official touchscreen. A lack of available current from low-power or cheap power supplies can cause vertical lines.
Raspberry Pi OS (+ Updates)
The display only official supports Raspberry Pi OS. If you're using a different/custom OS we can't guarantee the display won't have issues - so it's best to troubleshoot with Raspberry Pi OS.
It's also wise to make sure your Raspberry Pi OS is up to date. You can do this by opening a new terminal window and entering the following commands:
sudo apt-get update
sudo apt full-upgrade