@thisisnotdave said in Retropie on Khadas Edge 2 running Armbian can't get sound in games to work over HDMI:

Is there a way to supress the VolumeControl::getVolume() - Failed to get volume range! error I see every time I launch a game?

Change the Audio Device setting in EmulationStation's Audio menu to Master or PCM and this should get rid of the warning.