Nvidia HDMI Audio

pioneer2000 · 15 May 2010 at 20:28

So, i've connected my spdif cable from the out of the motherboard to the 285gtx input.... (i.e. the internal connection).... but I have no option to enable the sound within Windows 7?

How do you get sound working via hdmi on a Nvidia card???! :confused:

alex24 · 15 May 2010 at 20:32

Control panel, sounds, change default device to Digital out HDMI or similar. This should pass sound from your digital out header on the mobo through the card and over HDMI.

If you don't see that option, see if there are some newer/correct drivers for your motherboard sound. The gigabyte site will have them for your board, I suggest getting them there as they should work properly with any customisations your board has.

pioneer2000 · 15 May 2010 at 20:42

I've only got "Realtek digital output" and defaulting that doesn't do anything.... do I need to restart after changing it?

I'm running the latest Realtek drivers.... not gigabyte's however. Will give them a try. Cheers

pioneer2000 · 15 May 2010 at 20:51

alexhull24 said:
Control panel, sounds, change default device to Digital out HDMI or similar. This should pass sound from your digital out header on the mobo through the card and over HDMI.

If you don't see that option, see if there are some newer/correct drivers for your motherboard sound. The gigabyte site will have them for your board, I suggest getting them there as they should work properly with any customisations your board has.

Nope, installing the gigabyte's drivers has not had any effect. By defaulting the realtek digital output there's no sound!

alex24 · 15 May 2010 at 22:00

Are you using a DVI-HDMI convertor or plain HDMI-HDMI?

The only other thing I could find was this.

It looks as though the geforce card should default to pass the sound over if it's connected properly. This suggests that the problem may be software. What program are you trying to get sound from? Make sure the settings are all set to SPDIF or digital out if possible.

pioneer2000 · 16 May 2010 at 01:02

VERY bizarrely - it was the TV's fault! My Samsung UE32B6000, in it's wisdom, does not forward the sound via hdmi if you rename the HDMI 1 socket to "DVI PC"...

There are options for:

"DVI PC"
"DVI"
"PC"

Sound passes through under both "DVI" and "PC" (but "DVI" looks awful as I guess it isn't set correctly for pc use).

So now using HDMI 1 named as "PC". Seems to be working sound wise and picture seems no different so far to "DVI PC". :confused:

Thanks for the help Alex - much appreciated!

alex24 · 16 May 2010 at 01:46

Glad you got to the bottom of it.

pioneer2000 · 16 May 2010 at 01:58

New problem!! :eek:

Thought i'd try connecting the macbook (mini displayport to hdmi) - it does not look right (it's kinda blurry, even though set to 1920x1080 and the tv renaming settings don't have any effect) under any hdmi port or renamed setting?!

Anyone know why that may be?

alex24 · 16 May 2010 at 02:01

Refresh rate? Scaling? I don't have a mac so I can't enlighten you on any specifics, but I'd check those things. Your TV manual should tell you which modes it supports.

pioneer2000 · 16 May 2010 at 02:16

I'm leaning towards this being a mac issue rather than the tv this time - appears to work set at 1360x768 via any hdmi port... just not at anything higher (seems blurry).

Am sure i've read somewhere that mac's cannot output certain resolutions dual screen... will have a try only running on tv, i.e. lid closed!

Not entirely sure there are any scaling options within os x... have tried both 50/60hz and seems no difference.