1. HDMI port caries both HD Video and Surround sound no S/PDIF required
HiNumber one is correct. Quote1. HDMI port caries both HD Video and Surround sound no S/PDIF required
You would need to take the HDMI output to a supporting AV amplifier from which you could run your surround sound speakers and the video.
I am assuming then that your AV amp supports sound input from the HDMI.
Have you selected HDMI on the computer as the sound output ?