I have a box running kodi in standalone mode with X11. My TV displays “no signal” if I leave it for too long, does anyone know how to stop this from happening?

I can still ssh into the box and use the remote app Kore so the system hasn’t suspended or anything like that.

Pressing up/down etc on the kore remote, which should change what is displayed on screen, doesn’t wake kodi up. However, I can wake it up if I tell Kodi to play a video.