Prevent monitor turning on during restart?

Question

Hi guys, I'm tinkering trying to do a real-life smartTV/Kiosk for commercials.I have no problem turning on/off the screen, however given that I do a daily restart, I would like to do it when the screen is off, and keep the monitor of during the restart. The problem is that every time I restart, the monitor turns on automatically.Is it possible to prevent this behaviour?Context: I have a script in autoload that decides when turn on/ff based on API call to a backend api. HW is Raspberry.

tony-allan · Accepted Answer

This might work&hellip;https://raspberrypi.stackexchange.com/questions/79728/keep-h...

layer8 · Answer

I don&rsquo;t think you can directly prevent it. Some BIOSs allow to preselect the video output, so you could set that to an unused output and switch the output later programmatically. It&rsquo;s probably easier when you have both integrated graphics and separate a graphics card (between which you can switch). A simpler possibility may be to attach the monitor to a power strip with IP control, which you can switch off before the restart and switch on again after the restart.