I have my Motorola HD cable box connected to my Sony 60a20 via HDMI. For weeks it passed both audio and video to the tv without problems. I recently hooked up my htpc through a dvi-hdmi cable. The tv displays the computer's video output only--as expected. However, when I unplug the dvi-hdmi cable, and reinsert the cablebox's hdmi-hdmi connection, the tv still continues to only display video. I have power-cycled both the tv, the cable box, etc, multiple times, and I am still not able to get any audio out of my cable box. I have verified through the cable box's service menu that it is infact outputting audio, as well as made sure that the tv has it's speakers turned on.
Do you have any advice as to how I can regain audio from my cable box through my television via hdmi? Thanks for any ideas you might have. :)