Suddenly No Video HDMI output

I’m able to SSH to the device ? What can be checked ?

I’m assuming you’ve tried a reboot (from ssh) with the TV connected and already turned on to the correct input ?

Does the OSMC splash screen appear if you do this ?

No splash screen. I’ve rebooted it couple of times

the problem was due no free available space at / and mediacenter wasn’t able to run

osmc mediacenter[283]: ERROR: Unable to create application. Exiting

If you’re out of space, a couple of commands over SSH (and in this order) to quickly free some space should help:

sudo apt-get clean
sudo apt-get autoremove

Unusual that you did not see the OSMC splash screen however.