Originally Posted by Atomic Rooster
If you look in your sound properties, it should list the video card as a play back device. Select it as your default player and see how the sound works.
I went to control panel, "sound and audio property" and in voice and audio tab I see two choices in the default device drop down menu: Realtek HDA HDMI out and Realtek HD audio output. Before when I didn't use hdmi, Realtek HD audio output was selected and audio came out of the audio plug. When I switched to HDMI, I selected RealTek HDA HDMI instead and I got audio from HDMI but with the problem stated above.
Under the hardware tab in sound and audio property, I do see an "ATI HDMI Audio" entry.
Why are the active sound devices from RealTek instead of ATI (my video card where I plug the hdmi cable into)?