I have the following setup:
Telekom Media Receiver X300T
Bose Lifestyle V30 sound system
The sound system is connected to the TV via HDMI.
The Xbox is connected to the sound system via HDMI also.
If I am connecting the media receiver to the HDMI-in of the Xbox I can see the TV stream but I have no sound. If I am connecting the media receiver directly to the sound system it is working very well.
I have tried both ways several times but no sound if it is connected to the Xbox.
I also tried all possible settings:
Media receiver: I tried setting it to stereo and to surround
Xbox settings: I tried all stereo and surround settings for audio
TV app: I tried to use the beta surround option and the standard mode.
I also tried all possible combinations of these settings but nothing worked. I always can see TV but have no sound.The other sound of the Xbox is working very well. I hear music and system sounds, and all other things but no TV sound.