I have an Asus m47A78 Plus motherboard, and a 4670 ATI Radeon video card and am running Windows 7 and a VIZIO tv. The video card has an HDMI port. I have hooked it to my LCD TV using the HDMI cable and get a good picture but I haven't been able to get sound except from the computer speakers.
The control panel for sound has the options of HDMI, speakers, headphones, and two places for S/PDIF. The HDMI, speakers, and S/PDIF are listed as Ready. I tried the HDMI for sound but don't get any sound through the TV. I bought an optical cable but don't get sound through that option either. So, the only way I get sound is to attach computer speakers to the computer.
What do I need to do? Buy better computer speakers?