I have no sound over hdmi with my Orange pi 5. I have tried installing alsamixer and alsatools but this reports no settings to adjust. I have looked in files-boot-config for the sound settings and line 5242 says HDMI analogue is not set. I tried altering that to =y but I am not allowed to alter anything here and save it, ( oh how linux loves denying you permission). Does anyone know how to apply some common sense to this, why do the Armbian developers think it is a good idea not to have sound over HDMI, there is no option at al to select this in sound settings. Yours extremely miffed.