Display remains white

[Escanor274]

Hey, the visualizer worked absolutely fine at first, but now the screen doesn´t start, it is always white. It seems that only the screen has a problem because the leds react to the keyboard as they should.
i have reinstalled the image several times now, but the screen is still not working. Unfortunately there is no error to see anywhere in the terminal.
any idea? :(

[Escanor274]

i just have used test_screen and nothing happened.
pi@raspberrypi:~ $ sudo python3 /home/Piano-LED-Visualizer/tests/test_screen.py
Init LCD
***draw line
***draw rectangle
***draw text
pi@raspberrypi:~ $

[onlaj]

Hey,
I had this problem a few times, it fixed by itself after few hours.
You can also try to reattach the screen, maybe the pins are not connected correctly.

[Escanor274]

that´s what i think too. i will buy a new screen and test it.
thank you for answering

[Escanor274]

the old screen was indeed the problem. The new one works just as it should :)