i updated to the new 2.1 yesterday and since then i have had no sound and the tv wont play music. it will play movies and tv shows but with out sound.
any ideas what i can do?
Isn't hdmi optical audio? I have mine connected with component and optical cables, and I also did not have any sound. Come to find out my receiver had reset itself to analog (I guess the update did something to cause this). Anyway I manually changed the source on my receiver to digital and all is working great now.
I guess I was lucky. I upgraded my Apple TV to 2.1 a day or two ago and its connection to my HT receiver, a Yamaha RX-V2400, remained in place. I use component for video and optical for audio.
Sounds like an HDMI signing issue. HDMI is NOT optical but it is digital.
Try turning your tv (or projector off) and unplug it. Then back on and see if that fixes it. You may want to plug and unplug the HDMI cord at the same time as well.