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Thread: Thoughts on getting Triple Monitor Working

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  1. #1

    Default Thoughts on getting Triple Monitor Working

    Hey all, currently I have a 1920x1080 desktop monitor as well as a Sony TV (which takes 1080 and downconverts to 720) hooked up to a 9800 GT Ultimate (the Asus frankenstein one).

    I would like to add hopefully one or two more monitors to the mix.

    My regular work is dealing with GIS 2D/3D openGL stuff but I game a little with mostly indie stuff. Most visually intense game I play is Oil Rush.

    What is the most sensible way to go about this?

    My understanding is there's the following options:

    1. Xinerama with 2 cards
    2. Nvidia Twinview with 2 cards
    3. ATI Eyefinity
    4. a GTX 295 to run 4 monitors
    5. an NVS/Matrox


    But I know Xinerama has limitations about 3D. Would this effect Oil Rush? How stable is it?
    I could go Eyefinity but I have mixed monitors (one I might add is 1280x1024). Also, how good are the newest drivers on the 5770 and 6770 cards? I've had one ATI card about 8 years ago..

    Or a GTX295. But I have a 650W PSU. I could underclock it but this seems silly.

    I could also use an NVS but they seem massively underpowered and poor for games. Would adding one to my existing card using the rendering abilities of the 9800GT Ultimate with the display outputs of the NVS. So I could theoretically have 6 monitors with a quad NVS?

  2. #2
    Join Date
    Feb 2008
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    Do you need to game on all three outputs? If not, have the third be a DisplayLink usb one. If yes, perhaps a Matrox dualhead adapter to one of your 9800's outputs would be cheapest

  3. #3
    Join Date
    May 2011
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    You can use two nvidia cards (adding another one to your existing Asus card if you still have an AGP or PCIe slot left), or a dual-GPU nvidia card like 295 to replace your Asus, and then configure TwinView in NVidia X Server Settings. That's probably the easiest way.

    Dual GPU with displaylink is not yet really supported. I think it'll be xinerama only for current X server versions if you want to use screens connected to both displaylink and nvidia. Also you would require really cutting-edge code to get it working a bit.

  4. #4

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    Those are some interest additional thoughts... hmm. Never thought about those DisplayLink devices. Big question is if support exists for them...!

    I'm also heavily considering a Matrix multihead box. Seems the best and most stable way, but not necessarily the cheapest.

    Does the Nvidia Twinview avoid some of the problems with Xinerama?

  5. #5
    Join Date
    May 2011
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    Yes. TwinView fakes one GPU with three monitors, when you're in fact using two GPU's. This solves most of the problems with dual GPU, including the 3D acceleration.

  6. #6
    Join Date
    Apr 2011
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    Quote Originally Posted by AlbertP View Post
    Yes. TwinView fakes one GPU with three monitors, when you're in fact using two GPU's. This solves most of the problems with dual GPU, including the 3D acceleration.
    Hmm, could you please give me a link with info about that. Thanks.

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