I can not control volume nor mute sound on Android S905D device.
I have audio passthrough turned off, but HDMI CEC is on. Probably device is sending CEC commands to LG TV instead of actually changing the volume. But nothing happens.
So is it possible to add switch in CoreELEC config manager - to ignore CEC system audio control? It could be done by inserting a condition inside xbmc/peripherals/devices/PeripheralCecAdapter.cpp CPeripheralCecAdapterUpdateThread::UpdateAudioSystemStatus