I have a Pi 3 with a Hifiberry Amp2 and want to connect my 7" HDMI LCD © touchscreen.
I have added the following lines to the config.txt
according to the Waveshare guide
hmdi_cvt 1024 600 60 6 0 0 0
After reboot the screen works completely fine but when I reboot it another time it has the same problem as before that it just shows me stripes. I have to do the same thing all over again.
Does anyone know what the problem might be?