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MSI R7770-PMD1GD5 3 outputs? (active/passive adapters)

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  • MSI R7770-PMD1GD5 3 outputs? (active/passive adapters)

    Hi all,

    I have an MSI R7770-PMD1GD5. It has three output ports. DVI, HDMI, DisplayPort (using a DisplayPort to DVI adapter). However, I couldn't get it to have all 3 outputs enabled at the same time. Only two at most. Tried under both Linux and Windows.

    After some research, it seems that I might need an active DisplayPort to DVI adapter. At this point I could only assume the adapter I have is an passive one.

    I'm rather new to AMD/ATI cards and DisplayPorts. Is it safe to assume an active adapter will solve the problem?

    Thanks.

  • #2
    Yes, an active DP adapter will solve that issue. It's also what the 3-output cards have inside, like the Sapphire Flex.

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    • #3
      Thanks!

      For the record, I bought an Astrotek Active DisplayPort to DVI adapter, and it worked.

      It's funny how this active adapter looks almost identical to the one I already have before which doesn't work, presumably a passive adapter.

      I'm only running at 1280x1024 though. I was told that for a resolution that requires dual-link dvi, I may need a powered active adapter (those with an extra USB plug for power).

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      • #4
        What about 4 or more outputs?

        Originally posted by pigeon View Post
        I have an MSI R7770-PMD1GD5. It has three output ports. DVI, HDMI, DisplayPort (using a DisplayPort to DVI adapter).
        Just wanted to bump this up a little.

        What would I need if I want to run 4 (or more) screens with this card?

        I read about displayport multistream hub, but they are not on the market yet (and will probably be pretty expensive too?).

        Are there other ways I can do this?

        Thanks again.

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