command line – Server 20.04 turn screen off after inactivity


I am running Ubuntu 20.04 server on a raspberry pi 4. My issue is that the screen does not turn off, at all.

I do not have any xserver installed, so x related answers won’t work. Using setterm, I can enable screen blanking, but powerdown does nothing, even though that’s what should control this. I’ve also tried gettings set org.gnome.desktop.session idle-delay 10 to no avail. I tried setterm --blank 1 --powerdown 2

I did manage to turn off the power to the hdmi with a command, but that was another day so I cannot remember the command. I’m controlling the computer directly with a keyboard, not ssh