Problem with HDMI output on Nano B01

Dear all,

I build a project where I have one camera attached to the nano B01, and the goal is to transmit the video signal to a Herelink system (Drone system communication), which receive the HDMI output from the Nano and that’s it.
So, the system is really simple, but the problem is the next:

Few minutes after the boot sequence, the HDMI signal is off.
I though it was a problem coming from the screensaver mode, but no at all !

Because my unique access to the drone is SSH, I deactivate the screensaver like this:

gsettings set org.gnome.desktop.lockdown disable-lock-screen 'true'
gsettings set org.gnome.desktop.screensaver lock-enabled false
gsettings set org.gnome.desktop.screensaver idle-activation-enabled false

But nothing happened…So I tried this on the .profile file, adding these lines:

xset s off && xset -dpms

One more time, I was out !

So I don’t have any idea of what happen.
Could you please help me to solve this "simple " problem ?

Thanks for your help and support.



Could you use the desktop GUI to disable the suspend and see if it will go to suspension?

No I don’t have access to the GUI.
I will need to install XRDP or VNC, but I won’t do that.