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AMD 7950 5.1 via HDMI?! - Page 2

post #11 of 27
Thread Starter 
Quote:
Originally Posted by ounderfla69 View Post

I have the same problem as you with a jvc tv and nvidia 9400 board. I have have a dual tv tuner card attached to a dta box and OTA. I couldnt get dolby/dts even directly through the optical out on the back of the pc even though the boards supports it. I moved my creative Xgamer audigy to the pc and use the optical out for dolby/dts.

That's interesting ... I wonder why we can't even get surround sound through the motherboards optical even though the onboard soundchip (VIA in my case) supports it, especially with the fact that once you popped in a dedicated soundcard you got it to work. That's good info for me as it supports my growing suspicion that I wont be able to solve my problem even with a receiver. Sounds like a soundcard is my only option. It is maddening thought knowing there must be a software workaround without having to purchase addtl hardware given the fact that I can coax surround sound out my PC simply by changing said VLC player settings.
post #12 of 27
Quote:
Originally Posted by 8bitG33k View Post

That's interesting ... I wonder why we can't even get surround sound through the motherboards optical even though the onboard soundchip (VIA in my case) supports it, especially with the fact that once you popped in a dedicated soundcard you got it to work. That's good info for me as it supports my growing suspicion that I wont be able to solve my problem even with a receiver. Sounds like a soundcard is my only option. It is maddening thought knowing there must be a software workaround without having to purchase addtl hardware given the fact that I can coax surround sound out my PC simply by changing said VLC player settings.
''

I use Plex for movies and WMC for tv watching and recording. My file server in the other room has a Xeon E3-1245 V2 and I'm tempted to try that to see if that will put out 5/1 to the TV. I was also thinking about putting in a discrete graphics card to see if that works.
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post #13 of 27
Quote:
Originally Posted by 8bitG33k View Post

A quiet voice in the back of my head is growing louder saying that I will be having the same issue even with a receiver.

except that you can hook up your computer to the amp via HDMI so that should at least let your system know how many channels it can output. TOSLINK is one way so it's up to your computer to output the correct stream, there's no handshaking to exchange capabilities. Another benefit is they tend to tell you what input signal they're seeing, so mine for example says DTS-HD 3/2 48kHz etc which is very useful for diagnosis.

if you look at my screenshot you can see it shows 8 channel capability. Interestingly, I note that the drop down menu for S/PDIF only shows 2-channels but doesn't display any channel numbers for HDMI on my setup.



As an aside, I'd disable audio resampling in VLC as this will only reduce your audio quality but I presume it is to remix the audio to the windows default (48kHz usually) so it can be mixed with system sounds etc. This is not really related to your current issues but worth noting for the future.

Do you have a dedicated sound card you can try? You might find one the same price as some adapters.

so.. what is your current setup and what is connected?

your motherboard has optical out... have you set up the channels in your motherboard audio software for 5.1? It's not trying to do any EAX or other sound stage effects is it?

Do you have a Blu-ray, DVD player or games console you can check no setting has been tweaked on the sound bar disabling certain channels? I've certainly done similar things before now and spent hours chasing a non-problem! Basically I'm trying to help you isolate exactly where the problem is... computer -> TV or TV->soundbar or a mix of both!


Quote:
Trying to wrap my head around what this means. I think I understand. If it's flac or something like that it will be only Stereo, but DD and DTS can be surround.

yep pretty much.. from the wiki (http://en.wikipedia.org/wiki/S/PDIF) "S/PDIF can carry two channels of uncompressed lossless PCM audio or compressed 5.1/7.1 surround sound such as Dolby Digital Plus or DTS-HD High Resolution Audio. But, it does not have the capacity to carry the uncompressed data in the lossless formats of Dolby TrueHD and DTS-HD Master Audio – as HDMI does."
 
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post #14 of 27
Thread Starter 
Quote:
Originally Posted by pharcycle View Post

except that you can hook up your computer to the amp via HDMI so that should at least let your system know how many channels it can output. TOSLINK is one way so it's up to your computer to output the correct stream, there's no handshaking to exchange capabilities. Another benefit is they tend to tell you what input signal they're seeing, so mine for example says DTS-HD 3/2 48kHz etc which is very useful for diagnosis.

Makes sense - the variable here being the HDMI which is capable of communicating in ways TOSLINK can't.
Quote:
so.. what is your current setup and what is connected?

My setup is that I have an AMD 7950 which feeds video two monitors. One via HDMI to my Vizio XVT473SV TV and one via Mini Display Port to my Samsung PX2370 monitor. I use two sets of speakers, an analog stereo set for when gaming at my desk (hooked up to the motherboards 3.5mm jack), and the soundbar from my TV when watching movies which is fed by optical coming from the TV which in turn receives it's signal from my GPU via HDMI.

So: when using my Samsung monitor I use the analog speakers for when gaming at my desk. HDMI for when watching movies on my TV. I usually simply disable one or the other monitor which automatically switches the audio, depending on whether I am watching a movie on my TV or if I'm gaming on my Samsung monitor.
Quote:
your motherboard has optical out... have you set up the channels in your motherboard audio software for 5.1? It's not trying to do any EAX or other sound stage effects is it?

VIA's equivalent of EAX is disabled. Like Windows, the motherboard audio software (VIA HD deck audio deck) only gives me an option to output stereo for my digital outputs. There is no switching possible as I am not even given any other options. It only shows options for 5.1 for the analog speakers which are plugged in to the motherboards minijack in the back of the PC. So it is giving me additional options where I don't need them, as I only have to analog speakers and is not giving me the options I need for where I do need them. I even unplugged the analog stereo speakers and disabled my Samsung monitor by unplugging the Mini Display port to make Windows/ VIA see the HDMI as the only option, alas to no avail.



What seems interesting is that when I select the motherboard Optical out in Windows Sound config, it shows me options for DD and DTS and they test fine when testing from here.

Quote:
Do you have a Blu-ray, DVD player or games console you can check no setting has been tweaked on the sound bar disabling certain channels?

I'll have to check with a friend if he'd be be willing to bring over his Xbox or PS3 to see if a different source other than my PC would give me different results. As for a soundcard, I'd have to purchase one which is not within my budget right now. I can say though that I have used my TV's Vudu app to watch trailers and movies in 5.1 surround sound - so I think I can rule out the problem being a setting within my TV or soundbar. I went ahead though and double checked all settings on my TV and my soundbar anyway, just to be sure, and disabled/ set eveything I can remotely imagine throwing a monkeywrench to a different setting, such as switching off my TV's Bluetooth audio streaming capabilities which is only stereo, as well as making sure that the soundbar is set to "Surround Sound: ON". I would imagine that if a TV or soundbar setting was the culprit I wouldn't even have been able to get 5.1 with VLC Player let alone watching a movie on Vudu.
Quote:
I've certainly done similar things before now and spent hours chasing a non-problem!

I know what you mean by wasting time due to user error doh.gif and I am certainly very grateful for your support!
Quote:
Basically I'm trying to help you isolate exactly where the problem is... computer -> TV or TV->soundbar or a mix of both!

Yep - that is exactly the best way to troubleshoot, to isolate the problem. And I really do sincerely appreciate your patience, time and effort! thumb.gif
Edited by 8bitG33k - 6/4/13 at 10:08am
post #15 of 27
Hmm, it's getting a little late tonight and I'm mostly out of ideas but I'd suggest trying to get your system working with just the TV and sound bar connected. I recall there is some issue with windows outputting multiple audio streams so as a longshot it could be that as your system has detected your analogue 2.0, that's all it wants to output even over digital.
Quote:
I even unplugged the analog stereo speakers and disabled my Samsung monitor by unplugging the Mini Display port to make Windows/ VIA see the HDMI as the only option, alas to no avail.

damm... guess you already tried..I assume you tried a reboot after disconnecting them? You shouldn't need to, I've got my 7970 hooked upto my monitor via DVI and a feed into my AV receiver via DVI/HDMI, as soon as I select the HDMI channel on my AV receiver, windows switches over and the sound comes out my 5.1 setup. Is your motherboard the gigabyte one in your sig?

sound-card wise, since you're wanting to use digital, pretty much the cheapest one you can find would be the same as any other - the Asus Xonar range are pretty decent and start cheaper than a TOSLINK -> RCA adapter. BUT... I don't see any reason why your motherboard digital out shouldn't work so I'd not rush to buy anything either.
 
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post #16 of 27
Thread Starter 
Quote:
Originally Posted by pharcycle View Post

Is your motherboard the gigabyte one in your sig?

sound-card wise, since you're wanting to use digital, pretty much the cheapest one you can find would be the same as any other - the Asus Xonar range are pretty decent and start cheaper than a TOSLINK -> RCA adapter. BUT... I don't see any reason why your motherboard digital out shouldn't work so I'd not rush to buy anything either.

Yes, all components in my sig. The Gigabyte has VIA onboard sound. As for the TOSLINK to RCA adapter, I got one for $10... the adapter is def cheaper than a soundcard (except of course that the adapter didn't work as did direct motherboards optical out directly to the soundbar didn't work).

Well, I'm ready to throw the towel I really don't know anymore what else I can do to troubleshoot this. I've certainly attempted all sorts of different ways of connecting the hardware with each other in various combinations, the afore mentioned adapter, tried out different drivers, checking and re-checking TV settings, soundbar settings and Windows and GPU settings incl longshots such as AMD Eyefinity DDMA settings (no settings that can be changed).

A note on DDMA though that caught my attention:
Quote:
An AMD Eyefinity display group must be configured and enabled before you can configure DDMA.

By default, your DDMA configuration is set to stereo output. Change the Windows® Sound settings for your DDMA configuration from stereo to quad, 5.1, or 7.1 to use additional speaker channels.

This means that the DDMA setting don't even become available unless both displays have speakers. In short, it could mean that since the AMD HDMI drivers default to stereo when Eyefinity is disabled, one has no way of enabling additional speakers as long as one display does not have speakers. (There is an article on DDMA here - the above quote can only be found in the catalyst help files under the Catalyst Audio Tab however). Like I said, it's a long shot but it's the best explanation I have and it would seem like a grave oversight on AMD's part.

This 7750 manual, under '4. Configuring Audio Output' seems to support my theory that there is no fix for this problem as it references needing to configure VLC Player for surround sound when using the GPU's HMDI out:
Quote:
Audio configuration of 2 or more audio streams is not achieved through Windows sound
property settings or AMD Catalyst software setting. Configuration is achieved through
supported media player programs.

Of course while doing my research I read about numerous other people having the exact same issue. But no one had a solution (short of purchasing additional hardware like a soundcard and using it to output sound), just many different theories as to why it wont work.

I hope the VLC player workaround will at least be of some help to some people with a similar issue.

Thanks to all for your help and pointers - I will be sure to post back if I happen to resolve the issue, although at this point I'm not too sure that even a receiver would solve anything (there is of course the HDMI variable that was pointed out by pharcycle, but somehow I am not overly hopeful at this point). Since ounderfla69 was able to resolve the issue using a dedicated soundcard, I might try that - even though it doesn't make much sense to me as to why the optical on a soundcard would work but the optical from the motherboard wouldn't. I'll also post back if I find a certain answer as to why it doesn't work, even if there is no solution. At least that might save people time and effort of troubleshooting a problem that can't be resolved.
Edited by 8bitG33k - 6/5/13 at 10:58am
post #17 of 27
yeah, sorry without the hardware in front of me it's a little hard to diagnose any further. Try XBMC (http://xbmc.org/download/) as you can set the sound output, speaker configuration and I'm pretty sure it can get exclusive use of your sound hardware too.

I use XBMC on my linux machines for playing videos, music etc and it's the best media centre I've used.

The optical -> RCA digital adapter will be useful IF you ever get it working at least!

If I were in your situation then I'd be tempted to do a fresh windows install onto an old hard drive just to eliminate any software issues and probably not even install the onboard sound drivers.

EDIT1: Also, maybe try without your GPU... just use your iGPU of your 2500K and the motherboard digital out... might have different results

EDIT2: One other thing... the adapter you got it probably one direction, I presume you've got it going from RCA -> TOSLINK and not the other way round? You shoudl be able to check if your system is outputting anything as you should see the optical connector glow red when it's outputting a signal
Edited by pharcycle - 6/5/13 at 2:12pm
 
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post #18 of 27
FWIW, while my TV (2012 Panasonic 55" LED) will output 5.1 via optical from an internal source (tuner or internet streaming), it will not pass-through 5.1 from an HDMI source. It's EDID reports only stereo to the HTPC. You might need an EDID override. You can find a thread at AVSForum > Home Theater Computers for that.
post #19 of 27
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Quote:
Originally Posted by pharcycle View Post

yeah, sorry without the hardware in front of me it's a little hard to diagnose any further. Try XBMC (http://xbmc.org/download/) as you can set the sound output, speaker configuration and I'm pretty sure it can get exclusive use of your sound hardware too.

I use XBMC on my linux machines for playing videos, music etc and it's the best media centre I've used.

I have XMBC installed, I'll have to test drive it with this particular issue again.
Quote:
If I were in your situation then I'd be tempted to do a fresh windows install onto an old hard drive just to eliminate any software issues and probably not even install the onboard sound drivers.

EDIT1: Also, maybe try without your GPU... just use your iGPU of your 2500K and the motherboard digital out... might have different results

I've considered that (ie fresh install on a partition of different HDD). [/quote]
Quote:
EDIT2: One other thing... the adapter you got it probably one direction, I presume you've got it going from RCA -> TOSLINK and not the other way round? You shoudl be able to check if your system is outputting anything as you should see the optical connector glow red when it's outputting a signal

I don't understand? I use the adapter in the only way possible, which is TOSLINK from the PC to the adpater and then RCA to the soundbar. This is the adapter.
Quote:
FWIW, while my TV (2012 Panasonic 55" LED) will output 5.1 via optical from an internal source (tuner or internet streaming), it will not pass-through 5.1 from an HDMI source. It's EDID reports only stereo to the HTPC. You might need an EDID override. You can find a thread at AVSForum > Home Theater Computers for that.

I'm thinking I am dealing with multiple issues here - and EDID might be one of them, at least where the TV is concerened. Although that would still not explain why I am not able to get surround even with the soundbar directly connected to the PC. Would you happen to have a link for the EDID discussion on AVS forums?


Edit: Also, do you have any input for a soundcard if I do end up going that route? I'm thinking either the Asus Xonar DS or D1.
Edited by 8bitG33k - 6/5/13 at 11:09pm
post #20 of 27
Here's the link: http://www.avsforum.com/t/1091403/edid-override-thread to the EDID override thread.
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