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 Posted: Tue, 31st May 2011 17:07 Post subject: |
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Does the adapter support audio?
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| Posted: Tue, 31st May 2011 17:12 Post subject: |
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erm... good question. It came with the graphics card so I assumed that it does. The dvi side at least has all the pins in it.
edit: forgot to mention: The nvidia control panel says that the hardware passed the hdcp test, and since this hd copy protection includes audio I guess the adapter does put audio through. Otherwise it probably wouldn't have passed the test *shrugs*
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Werelds
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| Posted: Tue, 31st May 2011 18:22 Post subject: |
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Erm, if you're using a DVI output or input, there is no way in hell you'll get audio. No adapter can magically give your DVI port the capability to carry audio. Has to be HDMI -> HDMI, can't be DVI -> HDMI or vice versa 
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| Posted: Tue, 31st May 2011 18:28 Post subject: |
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| Werelds wrote: | | Erm, if you're using a DVI output or input, there is no way in hell you'll get audio. No adapter can magically give your DVI port the capability to carry audio. Has to be HDMI -> HDMI, can't be DVI -> HDMI or vice versa |
This.
I don't get why ppl think that they'll get audio through DVI :\
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Slizza
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| Posted: Tue, 31st May 2011 18:34 Post subject: |
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I think he thought the DVI > HDMI converter would make the cable carry audio from the DVI port as it is now HDMI. lol.
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| Posted: Tue, 31st May 2011 18:45 Post subject: |
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What's there to lol about? If you can't get audio through dvi, then what's the spdif input jack on the card for?
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Nui
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Werelds
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| Posted: Tue, 31st May 2011 20:09 Post subject: |
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@ Nui: Yes, but what you're doing is effectively HDMI -> HDMI, and it only works because there is an additional chip to do it.
Let me explain this Perry.
DVI is older than HDMI, and stands for Digital Video Interface. As such, it was not designed for audio, and a pure DVI signal will not, under any circumstance, carry audio. Period, end of story.
Or maybe not. HDMI and DVI do share some similarities, and because of that it is possible to convert the digital video signal from DVI to HDMI or vice versa. Note, this is for digital video only, HDMI cannot do analog video (i.e. VGA). Now, without going *too* much in detail, DVI has 24 pins, HDMI has 19; obviously HDMI lacks some for the VGA (which would be RGB, clock, and ground = 5) but even then it should theoretically be possible to push HDMI on that DVI cable right? Both have 19 pins.
Well, yes, but it requires additional hardware to "fake" it. AMD at least have this extra chip (I'm not sure about NVIDIA in this regard) ever since the 3000 series, but like I said, it does require that chip and it does require some config changes. Basically all it then does, is to use 19/24 pins on that DVI output.
Seeing as how you're on a GTX 275 though, I'm not sure it's possible for you. The reason I said "no way in hell" is because it's just not as easy as real HDMI. Even if your 275 can do it, just having the hardware won't do, you'll need to find out how to configure this in your control panel. That I can't help with, because I don't have an NVIDIA card right now.
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Nui
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| Posted: Tue, 31st May 2011 20:29 Post subject: |
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It should work if he did everything he said right.
Note, you should set the audio out not to Digital Audio SPDIF but to the HDMI one (if you are using the internal SPDIF output) in the audio settings. And yeah, check the NV CPs desktop properties, to see if all the connector settings are correct.
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Werelds
Special Little Man
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| Posted: Tue, 31st May 2011 20:53 Post subject: |
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Read what I said, you need to tell your driver to use the DVI output as if it were a true HDMI port before it'll push audio onto that port. Has nothing to do with Windows' audio selection. Unless the driver makes it clear to Windows that there is an HDMI port available, you won't get the appropriate output option.
Edit: make some screenshots of your available output devices and such Perry.
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| Posted: Tue, 31st May 2011 21:16 Post subject: |
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Which sound card do you have?
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