Originally Posted by DaGamePimp
Not true at all, there are many video cards (and have been for years) that will provide audio through DVI with the proper DVI to HDMI adapter. I own several cards that do this, it has mainly been an ATi feature.
repeating something that is not true will not make it true............
Since the DVI specification does not support audio transport, an interoperability problem arises when an HDMI-source drives a legacy DVI display (such as a PC monitor), or conversely, when a DVI source drives an HDMI display. While HDMI and DVI compliance rules ensure that a DVI video connection can be successfully negotiated and established (via a mutually supported display mode), the audio signal must still be transported through means outside of the DVI connection. Typically, an HDMI-equipped source will provide additional outputs for audio, such as line-level analog and SPDIF, which provide a baseline audio program (such as stereo PCM). Likewise, when displaying video from an HDMI jack, an HDMI-equipped display may support alternate audio sourcing from a separate pair of analog-audio inputs. Provision for any of these compatibility mechanisms is down to the manufacturer; they are not specified by HDMI. By 2010 nearly all HDMI-equipped sources (set-top and media-extender boxes, Blu-ray and DVD players, and PCs) provided separate analog audio outputs, and many HDMI-equipped televisions supported alternate-audio input when sourcing video from an HDMI input.
There are consumer adapters available to place between a DVI source and HDMI device which can insert a separate audio signal into an HDMI TMDS data stream. DVI connectors on PC video cards have also been increasingly able to take advantage of HDMI features such as audio output.http://en.wikipedia.org/wiki/HDMI#Co...ility_with_DVI
HDMI supports audio DVI does not.....
The video card can only pass audio over DVI when there is a HDMI device at the other end