Support DirecTV - HDMI Connection/Sound Bar - No Audio

Yurp, got a Genie box now, and it's been working for like a month or so, but all of a sudden, I'm getting no sound with the HDMI connection going through an HDMI sound bar. Sound works perfectly for my PS3 and Xbox 360 though, and I'm getting perfect picture still, just....no sound at all.

For now, I switched the DirecTV to using a composite cable straight to the TV, which has no problems, but I still want to be able to keep it connected through my HDMI sound bar thing, to utilize the intended convenience.

Haven't tried running an HDMI straight from the DirecTV box to the TV, so maybe that'll work? I dunno. Solutions for getting sound through the HDMI connection using the HDMI sound bar are what I'd really like.