TechSpot

DVI Issues, could really use some help

By simplydemented
Mar 6, 2009
  1. Long story short, I am trying to run a DVI line through my basement. One of the cables seems to be giving me a problem, but I sent it back, it was tested, and deemed "fine".

    The parts I have are a Tower with DVI-I dual output.
    2x DVI-D Single cables
    1x DVI-I Dual cable
    2x DVI couplers
    Monitor with DVI-D input

    The DVI-Ds coupled together work fine
    I have been told the DVI-I cable is fine
    ... but any combination I try that makes use of the DVI-I does not work.

    I just drew up a fantastic picture in paint for another forum, so maybe it will help explain the issue.

    http://s75.photobucket.com/albums/i301/simplydemented1/?action=view&current=DVIIssues.jpg
    (wont let me post links because im new, theres a space in the htt p)

    I have been having issues with this for about a month now. Anyone have ANY idea why this wont work?

    I know digital signal fades after a certain distance, and this setup is about 30 feet... but I have read that I should still get a picture at that distance, it may just lose some quality.
     
  2. simplydemented

    simplydemented TS Rookie Topic Starter

    lol, nevermind. After a month of this, I finally got it working. :D
     
  3. LNCPapa

    LNCPapa TS Special Forces Posts: 4,332   +277

    So what was the problem? How did you make it work?
     
  4. simplydemented

    simplydemented TS Rookie Topic Starter

    stupidity on my part.

    I am trying to link this up to my tv with ultramon, and I had a similar setup awhile ago that made use of DVI going about 25ft. I read online that DVI can get up to 30 feet before losing quality, so coupled with my TV experience, I figured the distance couldn't be the issue.

    What I failed to realize is the maximum resolution for that distance w/o losing quality is 1280x1024. My tv is 1280x720 and my monitor is 1680x1050.

    Long story short, by testing on my monitor i was losing the quality at around 15feet (cables add up to ~30) so nothing was coming through. By dropping my resolution down to the same as the tv, I got picture with no problems. :)
     
  5. LNCPapa

    LNCPapa TS Special Forces Posts: 4,332   +277

    Thanks for posting your solution - hopefully if someone else stumbles upon this thread in the future this can provide them some assistance.
     
  6. SNGX1275

    SNGX1275 TS Forces Special Posts: 12,626   +320

    What gauge wire? I think if you can get down to like 22 you'll go further. If you are using 26 or 28 I can see how this would happen. Might be worth looking into, monoprice.com sells them cheap.
     
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