in our application, we need to be able to turn the HDMI screen off at certain moments (and then obviously be able to turn it on again) This is controlled via GPIO pins, but that’s not improtant - just giving a background.
What is a proper way to do it on Jetson?
Since this is Ubuntu, I tried running:
xset dpms force off
It works. But only for something like 5 - 10 seconds and then the screen wakes up again. Not sure what is causing this. I tried disconnecting mouse and keyboard to be sure, but it still happens.
The only reason the screen should turn on again would be our own explicit command. In this case:
xset dpms force on.
May be a similar problem as this one, but I cannot tell as that thread never got actually resolved:
That said, I either need to diagnose and fix this xset dpms method, or use a different method.
Can anyone suggest anything?