Eyefinity Test - Problem on 2/3 Monitors

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  1. Posts : 24
    Windows 7 64 Professional
       #1

    Eyefinity Test - Problem on 2/3 Monitors


    So I got my active mini display port cable in the mail today, and finally got to try out my setup! Unfortunately, I'm running into some issues with it while full-screened and in game.

    The left and middle monitors seem to be "choppy" almost as if it's a refresh rate problem, but the far right is perfectly fine.

    This is what it is doing to me on the far left, and middle monitor...
    Eyefinity Problem - YouTube

    I'm running all of this off of a single 6870 1GB card, but not sure if that's the issue?

    I'm not really sure how to trouble shoot this - Any help is greatly appreciated!

    Thanks,
    -Rob
      My Computer


  2. Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       #2

    Splitting up one port across two monitors would be the first obvious guess. The bandwidth is immediately cut in half!

    Most will add in a second card when trying to expand outward to a 3rd display. The card shown in the AMD/ATI FaQs page has a single dvi port and a dual link dvi port that serves two outputs instead of one. Newegg.com - SAPPHIRE FleX 100352FLEX Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card

    You likely need to read through the information to see what is the actual recommendations as well as setup information on the AMD Eyefinity FAQS
      My Computers


  3. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #3

    I'm not actually splitting a port between 2 monitors though - If I'm understanding you correctly, that is?

    I have the 2 left monitors running from both DVI ports on my card, and the far right (the one that isn't having issues) is running from the mini display port to dvi adapter.

    I took a screenshot while the problem is occuring, and it is not showing to be effected by anything.
      My Computer


  4. Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       #4

    The mini port adapter is working fine while the other two suffer from using the normal dvi output. Generally you would expect the opposite to some extent where the 3rd would be the one hampered a bit unless something is overtaxing the main signal.

    Have you tried any other screen resolution by change to see if slightly lowering it down would help any? AMD had a good reason for pointing to that Sapphire card however. You might end up having the need to go with another card entirely if the present is unsuitable and unable to handle this type of setup.
      My Computers


  5. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #5

    I've read that the 6870 should be able to handle a minimalist eyefinity setup, and everything seems to be fine except the distortion on the monitors...

    Is there anything I could do about this rather than purchasing a new card? (I'd rather not)
      My Computer


  6. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #6

    For the sake of lulz, I'm going to try running...

    1 x Mini Display Port to DVI
    1 x HDMI
    1 x DVI

    And just see what happens

    EDIT: Was a flop xD The HDMI is reading the monitor as an HDTV er w/e and the res. isn't filling the whole monitor lol
      My Computer


  7. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #7

    To be specific; this is the exact card I have - Newegg.com - XFX HD-687A-ZNFC Radeon HD 6870 1GB 256-bit DDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

    Interesting to find out that it's discontinued! lol
      My Computer


  8. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #8

    Fixed it!! Enabled triple buffering in game and the bars went away! (Strange?)
      My Computer


  9. Posts : 8,375
    W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
       #9

    Good! At least it wasn't hardware related while that couldn't simply be left out as a possible cause.

    If that is the only place you are running into this then you now know it's strictly software related. This is one reason why I had asked if you had tried running at a different resolution in case something like this was the reason.
      My Computers


  10. Posts : 24
    Windows 7 64 Professional
    Thread Starter
       #10

    Night Hawk said:
    Good! At least it wasn't hardware related while that couldn't simply be left out as a possible cause.

    If that is the only place you are running into this then you now know it's strictly software related. This is one reason why I had asked if you had tried running at a different resolution in case something like this was the reason.
    Yeah I was hoping it wasn't hardware related (I didn't wanna shell out the money for a new card) xD

    But enabling triple buffering/vSync seemed to be a simple fix for it!

    Although, I ran some UniGine bechmarks and I really am considering picking up another 6870, or even getting a more powerful single card to run off of because the eyefinity setup on the single 1GB card is definitely limited...
      My Computer


 
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