No output from HDMI


I’ve been struggling with the HDMI for some time, but it has started to work after adding


into the /boot/config.txt

It has been working fine for some time, but after couple hours of ot using the device I wanted to play some music again. Unfortunately there was no sound leaving the RPI3. There’s a LED inticator on my A/V receiver. It was off, so there was no signal detected. Reboot did not help.

For some unknown reason, it has started to work some time later without any interaction. I’ve checked the logs (/var/log/volumio.log) for some culprit, but could’t find anything.

What can be a reason for such a a strange behavior?