Recalbox doesn't show image

[g5fighter]

I've been using Recalbox correctly for a long time now. But one day when I started it stopped showing screen. I reinstalled the operating system, but nothing. I have looked for solutions like putting the hdmi in safe mode with few results. I only got the screen to show the start of recalbox on a disproportionate black background, to later stop working.

Thanks in advance.

[acris]

https://forum.recalbox.com/topic/17240/recalbox-no-muestra-imagen