Apparently, this command will turn off the HDMI and composite signals and save around 20mA
Seeing as Volumio is headless and can be operated via SSH if need be, would this be a worthwhile addition?
The only problem I see is setting up wireless on a Raspberry Pi Model A which may need the video signal to start with.
I guess also, that having less electrical activity MIGHT potentially reduce interference and improve sound quality. Although more likely it will have no discernible effect.
Just thought it might be worth mentioning.
Perhaps there could be a toggle in the “Services management” section of the system menu. I like tweakability, although I like the idea of keeping Volumio as simple as possible.