I updated a 6.03 install to 6.04 (myth .24) according to this thread...

http://knoppmyth.net/phpBB2/viewtopic.php?t=22016

and have it running routinely on a test machine.

The test machine, however is plugged into a monitor, and I don't get to look at sound over hdmi with this setup.

Next up is a production machine (about 6.02) that uses a Nvidia Asus 8400gs (silent no fan) 512 mb video card outputting DVI with a DVI to HDMI adapter cable to the (1080P) tv, (and running VDPAU high quality).

Will video over HDMI work for this ? (Before I mess with a working production machine

This computer has no spdif output and the card has no spdif input.

Would it work with a Nvidia 220 card with HDMI out, (if the 8400 won't do it) ?

I'll eventually find out by experiment, but could use some advice of experience if anybody has been there already

If I understand you correctly, you're using a DVI-to-HDMI adapter. DVI end is attached to you 8400 card and the HDMI end attached to your TV. This should work for video. In fact, I'm doing this with a Zotac ION mobo on one of my FE's. It worked without issue.

You will not get audio via the DVI-to-HDMI connection, but video should come through. I'm not certain you'll be able to use the VDPAU HQ preset with an 8400. I don't believe the 8400 can do the high end deinterlacing. That was the case the last time I tried it with the same card you have. VDPAU Normal or VDPAU Slim (I forget what it's called) will likely provide better/acceptable results.

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Mike
My Hardware Profile

Yes. I have been using this for video for some time without issue



Sigh. After a whole buncha internet research on this I got a whole buncha conflicting answers. Some have said the sound will get in the pcie interface... others say not. Apparently some (later model ?) motherboards have a spdif connector which gets linked to a spdif in on the video card. My mo-board doesn't have this so a different card won't help if it's necessary to get the audio into the vid-card.



Video with this card isn't a problem. I found I could get away with using HQ VDPAU and set interlace for BOB 2x and fallback to oneline.

DVI does not carry audio. If you go DVI-to-HDMI converter you will not get audio on the HDMI end unless you have a converter that will take S/PDIF out of your mobo and add it into the HDMI stream. See here. My DVI-to-HDMI does not have this as it's a simple cable that just maps the DVI pinouts to the correct pins on the HDMI end.

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Mike
My Hardware Profile

So I implemented 6.04 on one of my 8400 vid card machines....

...and lo... no audio over HDMI ....

So .24 Mythtv was said to support this... What would i need to do to make it work, considering my mo-board has no digital output connector ?

I presume you have analog audio, so maybe something like this: Link Disclaimer: I have not done this before and don't know if this specific item will work for you.

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Mike
My Hardware Profile

I currently use analog out, to an amplifier, to speakers. Works well, but not as concise a solution as audio over the existing HDMI connection, to the TV speakers.

Thanks for the link. I may want to pursue that angle.....

I actually do this with one Mythbox to the TV, but the audio cords are separate and not as neat, and the set only has one HDMI that takes analog audio in. The other Mythboxes that feed it use the amp and speakers sound solution.

I don't have a 8400 based card myself, but you might want to check to see if your video card supports audio. Try this:

The second audio device shown here (at the same major addr as the vga) is actually my video card and lets it provide audio data over any type of cable that supports it. If your video card has audio support and either an HDMI output or a special DVI to HDMI dongle it should be able to do the same.

BTW- Which ASUS silent 8400GS?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121360 ?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121428 ?

The first one.
Researching G98 ... it appears that if they don't talk about audio on the chip ... there probably isn't any...

So question is.. what card does.. and does it have to get a spdif input ?

I'm really not trying to be rude here snaproll but 3 posts have told you that audio DOES NOT travel over DVI. DVI is a Digital Video Interface, it only ever carries video. When you have a DVI - HDMI adapter only the video works.

Now as far as spdif out goes what motherboard are you using? Is there a 4 or 3 pin header on your motherboard that says SPDIF or digital out. Check the manual if it's a pdf manual do a search for spdif. You might have to only buy one of these http://www.amazon.com/s/qid=1298524643/ ... %20bracket

Thank you for your time

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My System

Not true, DVI is perfectly capable of carrying both audio and video in the data stream just like HDMI. The issue is the video card has to support putting audio into the data stream and then out the DVI port. Then a DVI to HDMI adapter gets the audio and video to your tv or amp. Both ATI and nVidia make cards that output audio to the DVI port. http://en.wikipedia.org/wiki/Digital_Visual_Interface#DVI_to_HDMI

Britney

Trouble is... I have done enough internet research to be getting an answer both ways to this... (See Britney's answer above..)



I have two IBM 6225's that I'd like to put this on.

I have the PDF manuals, and conducted that search... NADA ... I think spdif is more recent than those mo-boards...

Thanks for the link with the diagrams, failing the manual search, I'll examine the mo-boards for a header like those shown.

So what I want to know, is what is the 'standard setup' for audio over HDMI that Mythtv .24 is intended to support, hardwarewise.

This is the answer I got. Now I'm looking to find out if it can be implemented in Mythtv .24 with the right hardware.

It appears an 8400 card won't.
Maybe a 220 series card ? Mainly I'm trying to find out if it can be implemented by audio through the PCIe interface, on computers that don't have a spdif output on the motherboard (probably older ones..)

I am using a nvidia GT210 and it works very well. Note that I am not using a DVI to HDMI cable as my card has HDMI out with audio. I am using a standard HDMI to HDMI cable plugged direct from the GT210 to the TV. If you are going to spend a little $$, I would suggest updating your video card.

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LINHES 8.6.1 BE/FE - MSI K9N6SGM-V with AMD A64 X2 4600+, 4GB Ram. 1.5TB WD. HDHR Prime. Nvidia GT210. MCE remote.
FrontEnd - Dell Vostro 400 3.0GHz Core2Duo NVidia GeForce210. MCE Remote

Thanks, Stan !

THAT was the answer I was looking for.... what hardware will do it.
I got a bunch of 8400s (Bought to implement VDPAU...) and hadn't considered audio over HDMI until the coming of Mythtv .24 caused some discussion of it.

I had hoped to avoid springing for some new video cards, but it looks like I will be in the market for some GT210 - 220s ....

Two more questions.... does your GT210 have an spdif input from the motherboard, or is the sound signal getting into the card through the PCIe interface ?

All of the GT 2xx cards have fans, right ? No 'silent' heatsinks ? ...