I am sorry that my first post is a question/bug report.
Volumio 2.348 on a Pi 3 doesn’t plays sound over HDMI when the Pi is powered on together with my Marantz NR1604 AVR.
After a reboot Volumio plays fine over HDMI.
HDMI Audio is set in options of the webinterface and /boot/config.txt contains
hdmi_force_hotplug=1
Even the shell command
sudo amixer cset numid=3 2
doesn’t help.
I’ve installed Berryboot (berryboot-20170527-pi2-pi3) on the Pi and Volumio is set as default boot option with 10 seconds delay
I’m unfamiliar with using the HDMI output with Volumio, but I did note that someone fairly recently reported that setting ‘hdmi_drive=2’ as well as the hotplug setting in ‘config.txt’ worked for them.
pls post berryboot-related topics in berryboot guide thread, as it is not supported elsewhere.
Note if you follow that guide, HDMI output should work just fine (that’s what I’m using).