Reply To: No sound over HDMI unless



I know nothing about Kodi, but the times I’ve had no HDMI sound is when the HDMI signal is in DMT mode. This usually happens when connected to a monitor via DVI, but some HDTVs will work in DMT mode as well as CEA. I fixed this by uncommenting the line hdmi_drive=2 in /boot/config.txt

This link has lots of info on all the config.txt settings: