I got a brand new RPi 5. Without SD card, I can see the boot screen, waiting for a SD card to be inserted.
But when the SD card is inserted, I only get a black screen: my monitor displays a "No Signal" or "No compatible resolution" depending on the trials.
I have tried several config options from the comments and answers on this thread.
I tried the config from this video.
All to no avail.
Any idea?