No 5.1 sound with Radeon HD 5450

Did you go to the AMD ATI website and download the HDMI drivers?

When you look at "control panel" -> "sound" what options do you see? Is HDMI there?

Right click the speaker at the bottom right of your desktop. Can you change any setting there?

Also what happens if you select "configure" in the sound menu? Can you change from 2 to 5.1 channels?

You need to install the Ati hdmi drivers, disable onboard audio, remove any Realtek hdmi drivers.

That's why I asked about going to the AMD ATI website to get those drivers.

Here are the 64 bit downloads: http://sites.amd.com/us/game/downloa...win7-64.aspx#1

Yes, the Ati hdmi drivers are included with the Catalyst driver suite.

Disable the onboard audio in your computer's motherboard bios.

Remove the Realtek drivers using the "uninstall a program" option.

Hope this helps.

FWIW I never could get the HDMI driver to install and had to do it manually.

DO NOT do the manual install first but just remember that it is a last resort to use it if the other installs fail.

Congratulations

That's ironic: I was unable to get DD or DTS on my new Win7 + ATI HDMI setup until I installed the Realtek drivers (which include an option for "Allow AC3/DTS/WMA")

Sorry to dig this out from the dead.. google searches will sometimes do that.. but..

I have nearly the same issue as you do (only difference is windows vista and yamaha receiver) but mine still does not output to anything other than 2ch stereo. I tried both the ATI drivers then the Realtek drivers, uninstalling the failed one before trying the other driver but to no avail. I also made changes to the bios to disable onboard audio.

Strangely, every now and then when I test some of the various supported formats (ie dts, dd) I will hear the test tone. But I can never get it to test at a 5.1 configured speaker setting. What am I doing wrong here? Is there anything else I can try?

You don't NEED to get the 5.1 "test tone" to work 'cause that requires the mobo to use DolbyLIVE or some active conversion to 5.1 -- instead, you want to configure your speakers for 2-ch stereo. It's the DD/DTS passthrough of the digital audio stream from your DVD/BR player via SPDIF that your AVR will decode which gets you the 5.1 audio, and if your AVR does 7.1 then 7.1 would also be an option in your HDMI Audio Device setup - just pick it! BE SURE your HDCP status is: available or you'll never be able to select DD/DTS as "supported formats"

Is your Yamaha set to pass-through the audio signal to your TV?
If so, then you need to turn it off.
The audio chain has to stop at the AVR, otherwise the PC will see the two TV speakers and set the audio output to stereo.

I'm not sure I understand what you mean here. I don't use a dvd/br player for most of my viewing.. mostly downloaded content from itunes. I used to use a separate RCA audio cable hooked up to the SPDIF out on my motherboard previously, but after upgrading to the 5450 I am using hdmi for all video/audio.

I can select 5.1 or 7.1 in the configuration screen but I get no audio when I do. My AVR (yammy vx1800) is simply taking the stereo signal and outputting to 5.1 which is obviously not the same.

No I have separate speakers hooked up the the AVR. Not using my TV speakers (if I'm understanding you correctly)

You may not be using the TV speakers but the signal may be reaching it anyway.
'Pass-through' option in an AVR is a feature that allows the audio signal to go from the source to the TV even if the AVR is switched off.
Enabling this option in AVRs has been known to cause problems.
Check your AVR setup/menu and see if you have a 'pass-through' (or similar) option. If it does, then you need to turn it off.

Edit: just read the previous post. Does your content even have 5.1 audio?
What is the model of your AVR?

Yeah, no such thing on my receiver (Yammy v1800) I get a PCM light that comes on when I'm using the HTPC. When I use a PS3, I the DTS light comes on.

Yes a lot of my content does have DD and DTS audio.

My best guess is that there may be some conflict with the drivers as I will lose sound entirely on occasion and it will come back on its own or when I play around with the sound options.

Are there any known issues related to Vista 64? I am completely at a loss here and have tried everything I can think of short of another video card.. which I am close to doing at this point.

This post helped me immensely. I am using Windows 7 x64 and I would like to make a couple of comments that helped me. Maybe this will help with Vista?

I downloaded the Catalyst 11.4 driver.

I also downloaded 7-zip, which allowed me to extract the driver, which was an .exe file.

Then I disabled (not delete) my onboard soundcard from the device manager (Control Panel --> Device Manager.

Then I updated my HDMI sound driver manually, and pointed to the extracted catalyst folder. Once I did this, the sound worked perfectly.

I read on a TotalMedia forum that HDMI audio drivers beyond 11.4 were causing problems. In addition, the Realtek HDMI drivers were causing the audio to drop (in my case, a loud buzzing occurred) whenever the video was paused or chapter was skipped when listening to Dolby TrueHD or DTS-HD. That's why they (and myself) recommend Catalyst driver version 11.4, and not the newest version (as of 12/21/11 it's 11.12).

Excellent. Thanks everyone, especially madtown for recapping. Used that process including 7zip and it worked like a charm for me.

I'm on a rather fresh install of w7 and I'm not able to DD2, DTS, DTS HD ECT. The only thing I'm getting is a variety of Multichannel settings. I have uninstalled the amd driver and tried to reinstall. Under AMD HDMI Output supported fromats are all there but my AVR won't allow me to select them. The AVR is an Onkyo R680 btw. It has been configured to run 5.1. Any thoughts?

Leave the O to AUTO-detect. I don't understand how the AVR is inhibiting your ability to adjust a setting in your PC's Device Manager? Is it like a Gorilla in the room and you're afraid to move anything? If you mean they're greyed out then you have not properly handshaken - cycle power on the O and see if you have HDCP: "supported" until you do you will NOT be able to use HDMI Audio... you DO have a display connected as well to the O HDMI output, right? Also, set the O to NOT pass audio downstream... set it to "strip" audio from the HDMI source and be sure you have configured the O to use HDMI Audio (not Optical, Coaxial, or analog) with the input you're trying to use.

Where can I find the hdcp on the AVR? All the settings on the pc appear to be fine.