[JimE]

1) A picture or a proper use of terms. There isn't a "video port" connector.

HDMI and Display Port will transfer audio. When connected to a TV, you have to select the HDMI or DP audio chipset as the default audio source.

VGA and DVI are video only.

 

[JimE]

Are you sure HDMI does not transfer Video And Sound together ?

I was playing my Xbox 360 and I insert the HDMI cable and both appeared working fine .

Yes. As previously noted, Display Port and HDMI transfer video and audio.