Jetson nano doesn't displays image over hdmi

I have an issue with my jetson nano, it doesn’t displays the image when conneted the to hdmi , I’ve tried with many displays and doesn’t works

Do you mean that the graphical interface is blank? This often occurs due to a configuration issue, or due to adapter cables. An actual HDMI monitor is required, without any sort of VGA adapter.

If you already have a true HDMI monitor, then you might try CTRL-ALT-F3 and see if a text console shows up. Serial console is by far the best tool to see what is going on though, see: