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Dr_BenD_over September 27, 2013 07:16 AM

HDMI Sound Issue
 
This seems odd. For years now I've run my HTPC into my TV using a DVI-HDMI adapter and had the sound go in separately via minjack-dual RCA (either from onboard sound or a Audigy 2 NX). My TV had one HDMI port that accepted audio to be provided in this fashion. I recently did and upgrade to my HTPC and switched over to a 8500GT card which has HDMI out. If I plug in the HDMI cable to the DVI port the same was as I always used to, audio works. If I plug in the HDMI directly into the card, my on board audio is getting disabled. I've had issues in the past with ATI cards that had there own HD audio that would try and hijack things, but to my knowledge, this Nvidia card doesn't have any built in audio. I'm thinking this might be HDCP type dealie, but why would it work with the DVI-HDMI adapter and then not with a direct connection.

enaberif September 27, 2013 07:48 AM

Quote:

Originally Posted by Dr_BenD_over (Post 731956)
This seems odd. For years now I've run my HTPC into my TV using a DVI-HDMI adapter and had the sound go in separately via minjack-dual RCA (either from onboard sound or a Audigy 2 NX). My TV had one HDMI port that accepted audio to be provided in this fashion. I recently did and upgrade to my HTPC and switched over to a 8500GT card which has HDMI out. If I plug in the HDMI cable to the DVI port the same was as I always used to, audio works. If I plug in the HDMI directly into the card, my on board audio is getting disabled. I've had issues in the past with ATI cards that had there own HD audio that would try and hijack things, but to my knowledge, this Nvidia card doesn't have any built in audio. I'm thinking this might be HDCP type dealie, but why would it work with the DVI-HDMI adapter and then not with a direct connection.

Yes the 8500GT does HDMI audio.. so let it use it :P

Dr_BenD_over September 27, 2013 08:09 AM

Seems it has a SPDIF pass through like a 9800GT I used to have, but I didn't see a header on this particular card for it. I'll take a closer look at it this weekend, maybe it's there and I didn't see it, or it wasn't populated, in which case I may have some soldering to do. I should have a SPDIF cable kicking around.

enaberif September 27, 2013 08:17 AM

Quote:

Originally Posted by Dr_BenD_over (Post 731969)
Seems it has a SPDIF pass through like a 9800GT I used to have, but I didn't see a header on this particular card for it. I'll take a closer look at it this weekend, maybe it's there and I didn't see it, or it wasn't populated, in which case I may have some soldering to do. I should have a SPDIF cable kicking around.

They don't have headers. Its built onto the card as are all newer cards. I have a GT 520 running HDMI audio out.

KaptCrunch September 27, 2013 11:42 AM

Nvidia audio drivers are part of the graphics card driver package

install Nvidia HD Audio

may also be HDMI cable doesn't support audio

clshades September 27, 2013 02:05 PM

you may need to select the tv as the sound source too in your audio options or playback devices. I've noticed win7 tools around a little at 1st but once you've gotten it working it will always work. If you are using VLC to playback videos try right clicking on the video while the movie is on the TV screen and manually setting the audio to 5.1 from it's default of 2.1. I've had a weird glitch in the past with VLC and this solved it.

Dr_BenD_over October 7, 2013 11:04 AM

Everything on the interweb seems to indicate that this card does not have it's own HD audio and uses a SPDIF pass through. There are also no unknown hardware devices in the device manager. I tracked down a a cable plugged it in, selected the SPDIF output in the audio options and still get no sound. I tried another HDMI port, nadda, checked the TV's audio settings and didn't see anything related to this issue. I guess I'll just keep using the DVI>HDMI adapter for now.

enaberif October 7, 2013 11:40 AM

Quote:

Originally Posted by Dr_BenD_over (Post 733681)
Everything on the interweb seems to indicate that this card does not have it's own HD audio and uses a SPDIF pass through. There are also no unknown hardware devices in the device manager. I tracked down a a cable plugged it in, selected the SPDIF output in the audio options and still get no sound. I tried another HDMI port, nadda, checked the TV's audio settings and didn't see anything related to this issue. I guess I'll just keep using the DVI>HDMI adapter for now.

Make sure that when the nvidia drivers are installed it installs the HD Audio drivers.


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