6870 dual monitor fail


  1. Jericho
    Posts : 19
    Windows 7 Ultimate
       New #1

    6870 dual monitor fail


    I've got a Sapphire Radeon 6870 that seems to have only one working DVI port, of the two on it. Both sets of cables work, one is brand new. Both monitors work. I can't use the HDMI out as I don't have an extension cable. I've tried using just the one that apparently doesn't work after a restart, nothing. I have no clue what's going on. I have the sapphire TRIXX utility to control fan profile, and AMD overdrive to control clock speeds, as well as the basic drivers for the card.
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  3. stormy13
    Posts : 6,879
    Win 7 Ultimate x64
       New #2

    Your problem is that you have one monitor that can use DVI (206BW) and one that is VGA only (920Nx), and a video card that only supports VGA/analogue on one of its two DVI ports. You need to figure out which of the two is the one that supports VGA when using the DVI-VGA adapter, and connect the older VGA only monitor to it.
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  4. Jericho
    Posts : 19
    Windows 7 Ultimate
    Thread Starter
       New #3

    Ah... ha. So I need to go get a DVI cable, rather than using two VGA cables and adapters. *head desk* Well that's a little more understandable.
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  6. stormy13
    Posts : 6,879
    Win 7 Ultimate x64
       New #4

    That would fix it definitely.
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  7. Solarstarshines
    Posts : 7,466
    Windows 10 Home Premium 64bit sp1
       New #5

    If you have the option to go HDMI that would eliminate one and the other could be dvi or vga what ever you prefer

    I myself have one hooked up through hdmi and vga and work flawlessly
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