Read the statement by Michael Teeuw here.
SOLVED Pi 3B+ HDMI turning off
Hi guys I’m nearing completion of my magic mirror but since this new update my magic mirror turns off the HDMI out put which displays the ugly No Signal, I need the HDMI to be powered all the time as I’m turning the monitor off so I just need a dumb HDMI. I have disabled the pi screen saver with Xscreensaver but this seems like a new thing added to the new update of MagicMirror. Can someone help it’s driving me mad as the only way to get it back is to reboot the PI
@dazza120 magicmirror does not fiddle with the hdmi or monitor on its own. this is provided by some module.
the OS may have a power save mode that turns off hdmi…
@sdetweil it’s mmm-voice when I tell it to hide the module the feed goes eventually, I just left it on and turned off the monitor and everything is good so we are all good thanks
@dazza120 yes MMM-voice has code to turn off the display when it is told ‘go to sleep’
why dont you use a simple contactor ?
I use this
the script is very simple and it turn off or on my screen when I want
and I never get " no signal" …
@seramik thanks but as said I already have a method of turning to TV off I just wanted the hdmi to stay live, as said it’s the mmm-voice that was the issue/cause