I got the Mu-so 2nd Generation and have spent the better part of today trying to make it work as a speaker for our Sony Bravia KD-55AF8. All works well for streaming and bluetooth etc.
After going through all the relevant forum topics both here and on Sony’s website, updating everything etc. I found out by chance that the set up works ONLY when the HDMI ARC to the Mu-So is the only HDMI cable connected to the TV. In this case everything works perfectly and the TV remote makes the Mu-so volume dial light up when adjusting volume and the Mu-so turns off/on when I turn the TV off/on.
Once I connect a second HDMI while all of this is working with eg Netflix (I connect either a set top box or my Xbox) it continues to work but the volume dial stops lighting up although the volume itself changes when I want it to and sound still comes out of the Mu-so. If I then try to switch the TV off and on again with two HDMI cables connected it all goes back to the TV either switching to its own speakers or no sound coming out of the Mu-so.
Bottom line the Mu-so only works with the Bravia if the HDMI ARC is the only HDMI plugged into the TV.
Any help is appreciated. Many thanks.