running 2 HDMI video cards - Can video ouput be turned off on one of them so only audio passes to receiver? - AVS Forum
Home Theater Computers > running 2 HDMI video cards - Can video ouput be turned off on one of them so only audio passes to receiver?
mitsu2k's Avatar mitsu2k 07:42 PM 06-18-2012
Sorry if this question has already been answered but I couldn't find a clear answer.

I want to set up a HTPC that is capable of 3D. The problem is that my Onkyo receiver does not support HDMI 1.4 so it will not handshake with a 3D signal. What I was thinking of doing is installing two video cards each having HDMI 1.4 outputs. I would like the first video card to send video directly to one of my tv's HDMI inputs and the other video card to send AUDIO ONLY to my reciver so I can take advantage of HD audio.

Will this work or are there any better options? I may be looking at this all wrong so I'd really appreciate help with this dillema.

Thanks for any help!!

Roger Dressler's Avatar Roger Dressler 08:55 PM 06-18-2012
HDMI does not carry audio unless there is video. Your Onkyo should be fine being driven from the 1.4 card, as it will inform the HTPC not to send it 3D video. This assumes the PC can service each HDMI card with what it needs.
mitsu2k's Avatar mitsu2k 09:12 PM 06-18-2012
Thanks for the reply. I'm a little confused because whenever I try to play a 3d bluray from my bluray player and pass it through my Onkyo TX-SR606, it drops both video and audio. Regular non 3D bluray will pass just fine. I'm assuming the same thing would happen with a HTPC? Would it not?
renethx's Avatar renethx 10:11 PM 06-18-2012

Yes, it works. "AUDIO ONLY" is not a correct expression. HDMI has to carry video. You will choose extended the desktop mode and send the unused second half of the desktop along with HD audio to AVR.

 

If you choose a NVIDIA card, you dont' have to buy another card as it supports dual audio stream. You will need two AMD cards, however. Look at this post.


mitsu2k's Avatar mitsu2k 11:29 PM 06-18-2012
Quote:
Originally Posted by renethx View Post

Yes, it works. "AUDIO ONLY" is not a correct expression. HDMI has to carry video. You will choose extended the desktop mode and send the unused second half of the desktop along with HD audio to AVR.

If you choose a NVIDIA card, you dont' have to buy another card as it supports dual audio stream. You will need two AMD cards, however. Look at this post.

Thank you renethx!! Can you suggest to me a motherboard/cpu combo that will work good for this purpose? Maybe the Intel route is best?
renethx's Avatar renethx 02:36 AM 06-19-2012

If you are going to buy new CPU and mb, choose Intel Core i3-2100 or higher and a H77 (or H61, H67, Z68) chipset mb (for example, ASRock H77 Pro4-M); then you even don't need a graphics card. Connect HDMI port to the display and DVI to AVR (or vice versa). Yes, DVI port (with a DVI-HDMI adapter) supports audio, at least in ASRock mb.


mitsu2k's Avatar mitsu2k 09:15 AM 06-19-2012
Quote:
Originally Posted by renethx View Post

If you are going to buy new CPU and mb, choose Intel Core i3-2100 or higher and a H77 (or H61, H67, Z68) chipset mb (for example, ASRock H77 Pro4-M); then you even don't need a graphics card. Connect HDMI port to the display and DVI to AVR (or vice versa). Yes, DVI port (with a DVI-HDMI adapter) supports audio, at least in ASRock mb.


is the H77 Pro4-M HDMI 1.4 to support 3d? Or does it matter?
mitsu2k's Avatar mitsu2k 09:18 AM 06-19-2012
sorry just saw in the specs it is 1.4a
mitsu2k's Avatar mitsu2k 09:45 AM 06-19-2012
Thank you so much renethx!! I just ordered the MB you reccomended. That's rreally cool, I never heard of audio via DVI. IS it bitstream or lpcm as far as the HD audio?
renethx's Avatar renethx 09:58 AM 06-19-2012

Whichever. TMT/PowerDVD can bitstream TrueHD/DTS-HD as well as decode it to LPCM. But people usually bitstream TrueHD/DTS-HD.


mitsu2k's Avatar mitsu2k 08:36 PM 06-19-2012
One quick question, I will be running an Intel I5-2500 cpu with this board. No plans to overclock. I have an Antec 350w power supply. Do you think this will be ok?
renethx's Avatar renethx 12:59 AM 06-20-2012

Yes. Core i5-3570K is a better choice.


mitsu2k's Avatar mitsu2k 01:15 PM 06-20-2012
I was looking at the manual for the ASrock MB and it did say that DVI port supports all HDMI features with DVI to HDMI adapter. However it makes no mention whether the adapter should be single link or dual link. I have this adapter but I'm not sure if I need a dual link for audio.

http://www.monoprice.com/products/product.asp?c_id=104&cp_id=10419&cs_id=1041902&p_id=2029&seq=1&format=2
renethx's Avatar renethx 01:42 PM 06-20-2012
Quote:
Originally Posted by mitsu2k View Post

I was looking at the manual for the ASrock MB and it did say that DVI port supports all HDMI features with DVI to HDMI adapter. However it makes no mention whether the adapter should be single link or dual link. I have this adapter but I'm not sure if I need a dual link for audio.

http://www.monoprice.com/products/product.asp?c_id=104&cp_id=10419&cs_id=1041902&p_id=2029&seq=1&format=2


HDMI is compatible only with single-link DVI. Every DVI-HDMI adapter supports only single-link DVI. The Monoprice adapter should work.


Tags: Onkyo , 3d Blu Ray Player Wifi Ready 1 Hdmi 3d Blu Ray With Touch Sensor Control Multi Format Disc , Blu Ray Players , Onkyo Tx Sr606 Receiver
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