REAL FIX: Make PC GAMES output HDMI DOLBY DIGITAL LIVE 5.1 surround AC3 in realtime - YouTube
Video Card Inputs and Outputs
Why Do Graphics Cards Have HDMI Ports? - Pointer Clicker
How to Get 5.1 Sound from Your PC Using HDMI - BoomSpeaker
What is the audio coming through my graphics card HDMI? How does it make sound? Which resource is this audio using (the graphic card or the computer processor or something else)? -
Getting 5.1 via GPU>HDMI>TV>S/PDIF Toslink>AMP possible? | TechPowerUp Forums