Technical > Computer Hardware Help > Sound problem

Sound problem

Could the problem be with your TV instead of the computer?

Do you have any other computers you can test on this TV?

reply to MuDvAyNe
HDMI audio (aside from laptops) does not use the onboard or sound card audio drivers. It uses the HDMI audio chipset and those drivers are part of the video driver package.

With that said, if the audio chipset is disappearing from the setup, I'd suspect a hardware fault. Either the video card, HDMI cable, or the TV itself.
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reply to MuDvAyNe
in device manager, there are likely 2 audio devices. one will be named something you'd expect like "realtek hd audio device" and the other might be "nvidia hd audio device".

as mentioned, HDMI carries video and audio, and there is no clear path for the realtek (eg) device to connect... hence the need for another device dedicated to the video output. part of the issue really comes from HDCP requirements.

either way, you have not updated all audio devices until you install the latest driver suite for your video card. try this and see what happens.

there are a lot of other possibilities, including as mentioned, hardware problems. do you have another hdmi cable to try? what happens if you disconnect the s/pdif hookup?
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reply to MuDvAyNe
What kind of machine is it? You should update your drivers only with what the manufacturer has supplied, unless you know for sure drivers from services like Windows Update and other sources will work.

Check your power settings. I think in Vista/7 there are some settings in there you should probably disable for your sound card/pci management, maybe others.

Update your BIOS and chipset drivers also.

Finally, check your Sound settings in Control Panel. If you have junked up some settings you need to clear those out. Go to device manager and uninstall the device(s), then from Add/Remove or Uninstall Manager in control panel. Reboot and reinstall drivers. There is a sound applet in control panel that handles default devices and similar settings you need to verify.

It should have two audio devices, HDMI and onboard card, so you will need to address both in the same manner.

Also, check your manufacturer website, there may be known issues. Google it.

reply to MuDvAyNe
Now that I think of it, this problem has been happening since updating my video card drivers last month. Explains a lot.. I guess I should of realized that the sound was from the video card also since it is HDMI. I feel like such a newbie right now. I am going to see if maybe there is an update for the video card again or if not try reinstalling the drivers.

Edit:

Drivers are up to date. Like I stated above this all happened once I updated the drivers last month. Unplugging the S/PDIF and also disabling it in Windows does nothing. Now it detects no sound at all. It actually shows the AMD HDMI Output as not being plugged in. I am going to try a different HDMI cable just to see what happens.

Edit 2 :

It's not the HDMI cable.

Edit 3 :

It's the drivers. I just deleted them all and went back to the originals and the sound stays when I switch inputs on my tv. I am going to try and install the new drivers and see if it happens again. If it does looks like I will just use the old drivers

Edit 4:

Same problem again when updating the drivers. Looks like I will stick with the old ones. Going to test out Diablo now and see if I see any downgrade in performance. I hope not.
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reply to MuDvAyNe

I wish that worked but it didn't. It's the drivers. I just hope the next version that is released solves this annoying problem.
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Mets, Cowboys, Devils

reply to MuDvAyNe
Just an FYI update. I noticed that there was an ATI Catalyst beta update. 12.6 which did address HDMI audio fix. I downloaded the beta and the Catalyst also updated this time! Amazing!! Anyway the beta drivers have fixed the sound disappearing when changing inputs!
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Mets, Cowboys, Devils