Will DVI carry audio? I have a GTX 660 SLI

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lackelvin

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Aug 21, 2014
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Well recently i realize using HDMI cable makes my monitor screen goes black for 2 seconds then it comes back, So i thought maybe because HDMI isnt securely inserted and could be loose.

Before I go on i use my monitor speakers.

My gtx 660's only has HDMI, DVI and DVI dual ink. I want to stay away from HDMI and use only DVI but still carry audio.

Apparently i heard that some graphics card allows DVI to carry audio thus allowing my speakers inside the monitor to work. Is it possible?

If not then what if i bought 2 adapters that connects DVI to HDMI, so i connect the DVI adaptor to my monitor and my GPU but use HDMI cable to connect them together. would it still carry audio?
 
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To get audio from a DVI port and feed it to an HDMI input on a monitor, you need two things. First, the standard for DVI does NOT include audio. However, MANY video card makers add audio in on some unused pins of the DVI output connector. To check on this, contact Tech Support for your video card IF you can't find the into in your card manual.

Now, the electrical signals for digital video on both DVI and HDMI are the same, so it is easy to get an adapter that converts a DVI output connector to an HDMI connector, and then you can use a standard HDMI cable to your monitor. HOWEVER, not all adapters connect the non-standard audio on a DVI output through. So you have to inquire carefully whether the adapter you plan to buy does this job.
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Jeffs0418

Jeffs0418

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In my case it does. I have an EVGA GTX 660. My cable is DVI to HDMI to my hdtv and the audio comes through just fine. I would imagine DVI to DVI would work also.
Hope this helps:)
 
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pierrerock

pierrerock

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No it won't sound is not transferred through DVI cable.

See: no audio.


DVI_pinout.png
 
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JackNaylorPE

JackNaylorPE

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If ya have trouble reading that the image is on the wikipedia link above along with typed out descriptions of each pinout

HDMI is a newer digital audio/video interface developed and promoted by the consumer electronics industry. DVI and HDMI have the same electrical specifications for their TMDS and VESA/DDC links. However, HDMI and DVI differ in several key ways:

HDMI lacks VGA compatibility. The necessary analog contacts are absent in HDMI connectors.
DVI is limited to the RGB color range (0–255). HDMI supports RGB, but also supports YCbCr 4:4:4 and YCbCr 4:2:2. These ranges are widely used outside of (beyond) computer graphics, color rendering.
HDMI supports the transport of packets, needed for digital audio, in addition to digital video. An HDMI source differentiates between a legacy DVI display and an HDMI-capable display by reading the display's EDID block.

To promote interoperability between DVI-D and HDMI devices, HDMI source components and displays support DVI-D signalling. For example, a 1080p HDMI display can be driven by a single-link DVI-D source - since HDMI and DVI-D both define an overlapping minimum set of supported resolutions and frame buffer formats. So, DVI-D devices output HDMI signals, many including audio, (examples: ATI 3000-series and NVIDIA GTX 200-series video cards),[9] and some multimedia displays input that HDMI signal, including audio, by using a DVI to HDMI adapter. Exact capabilities vary by video card specifications.
Click to expand...
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Paperdoc

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To get audio from a DVI port and feed it to an HDMI input on a monitor, you need two things. First, the standard for DVI does NOT include audio. However, MANY video card makers add audio in on some unused pins of the DVI output connector. To check on this, contact Tech Support for your video card IF you can't find the into in your card manual.

Now, the electrical signals for digital video on both DVI and HDMI are the same, so it is easy to get an adapter that converts a DVI output connector to an HDMI connector, and then you can use a standard HDMI cable to your monitor. HOWEVER, not all adapters connect the non-standard audio on a DVI output through. So you have to inquire carefully whether the adapter you plan to buy does this job.
 
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