On raspi4 i tried le 10,10.0.1, 10.0.2, nightly 11
All the same. Rainbow coloured picture Shows up, then Black screen. TV is a samsung uhd from 2019. Tried different cables. Tried an older TV. Wont work. Tried safemode and hotplug.
If I put my SD card in with raspOS on it everything is fine.
Don't know what to do.