HDMI connection causing strange noise

[syrinx2193]

Hey Guys and Gals,

Just got a new machine with a GeForce 9600GT vid card. When I have it hooked up to the HDMI port on my Sharp Aquos tv, I get this weird repetitive distortion coming through the speakers... kinda sounds like someone making a hard 'CH" sound. I should note that this sound comes through the tv speakers as well as my external computer speakers. When I unplug the HDMI cable, the sound stops. It doesn't make the sound when I have it hooked to up to the S-video connection. Any clue what this could be and what I can do about it?

 

[Nenu]

NVidia cards do not support audio onboard so NVidia have included an SPDIF pass through connector which you connect to your soundcard.
I would assume that there would be no sound if nothing was connected though.
Try connecting to a live SPDIF connection and see if it alters in any way, it might be a quick cure.

Check that you have the latest video, soundcard, motherboard drivers, it may be a known issue that has been fixed.
Its worth seeing to see if NVidia have released a new BIOS for your graphics card and and that your motherboard BIOS is up to date.

 

[syrinx2193]

My card doesn't have any regular audio ports on it. But funny thing, after I posted this topic I reconnected the HDMI to the other DVI port on the card and the sound is gone