Hi,
I have a strange behaviour my hdmi output.

The hdmi output is ok at boot as I see clearly the bootlogo, but during the booting the hdmi signal seems to go away as I see "no hdmi input" on my tv screen. I have no Hdmi output also when the booting is ended. I have also flashed another image with same results.
The scart output works fine.
Any suggestion to solve this issue ?