HDMI to DVI conversion ...

Discussion in 'Displays' started by James_SCEA, May 20, 2005.

  1. James_SCEA

    James_SCEA Agent

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    Hi all,

    I was wondering if any of you are aware of any limitations on converting HDMI to DVI or visa versa. I have read in a couple of forums and on Audioholics.Com that you may not necessarily get the same performance as you would if you would run the straight connection without using a converter/adaptor or conversion cable.

    Thanks in advance,
    JC
     
  2. John S

    John S Producer

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    Hmmm.. Digital signal? If you get picture and the colors are correct, I can't see how it would be degraded.
     
  3. Doug Miller

    Doug Miller Supporting Actor

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    I had last years Sony 42in LCD with DVI. Due to a defect, I swapped it with this years Sony 42in LCD with HDMI. Being that I had a $100 cable that I didn't want to throw away, I bought a DVI/HDMI adapter from Crutchfield (although now Best Buy and Sears have them too) and haven't noticed any difference. Granted, I don't have the TVs next to each other, but I will say that my HD signal is spectacular and I have noticed no problems with the connector, other than that HDMI's connection is lame and that I wish it had screw downs like DVI. (The HDMI cable has a tendancy to lean because of the cable weight, so I have it anchored with a half inch piece of duct tape to keep the connection from accidently disengaging.)

    Doug
     
  4. ChrisWiggles

    ChrisWiggles Producer

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    There is no signal conversion occurring, it is only a physical plug change.

    DVI supports 8-bit RGB, and HDMI supports the same. If you are using DVI as one of the input/outputs, this is what you will be getting straight through.

    If you were using HDMI all the way, you would have the added option of higher bit transfer, as well as using native YCbCr data instead of RGB. You can think of DVI as something like a limited(but totally adequate) subset of HDMI. Using HDMI-DVI should be no different than using DVI-DVI, except for a physical plug difference.
     
  5. James_SCEA

    James_SCEA Agent

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    Cool, thanks for the valuable info. My panasonic tv has a DVI input but my player is HDMI - I am now somewhat confident that I can use an HDMI to DVI cable.

    Thanks again,
    JC
     
  6. Thomas*F

    Thomas*F Auditioning

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    Chris is absolutely correct - no signal conversion - digital end to end only the physical conncetion has changed.

    I have had good luck with HDMI/DVI cables from a company named Lindy - you can get a 100' cable for less than $100 - I have bought several.

    lindy.com/us or
    audiovideo.lindy.com

    Good Luck,
    Gene
     
  7. Parker Clack

    Parker Clack Schizophrenic Man
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    James:

    I am using DVI to HDMI from my HTPC to my RPTV. At first I went to Best Buy to look at the prices on their cables and was floored at how much they wanted for a Monster cable. I called Kurt at Blue Jeans Cable and got a 6 foot cable for under $40.
    The construction on the cable is first rate and works without a hitch.

    Parker
     

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