Graphics Eyefinity Question

Discussion in 'Hardware' started by Pookeyhead, 4 Oct 2010.

  1. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    I just read this on the ATi website:


    Does that mean that if I have 2 cards in crossfire, and want 3 displays, I can only run them off ONE of my video cards?

    If so, that's the most stupid think I've ever heard.
     
  2. Burnout21

    Burnout21 Is the daddy!

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    im confused pooky, aren't you running a GTX295?
     
  3. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    I am, but I want 3 monitors - 2x 1200x1600 portrait - and one 2560x1600. I can't do that with a nvidia card, so I will have to go to the dark side :)
     
  4. Bartaggio

    Bartaggio Minimodder

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    Maybe he wants to upgrade?


    OT: Seems that way yea, even though you could get 2 "groups" of displays( 1 group on each card)
     
  5. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    You mean have one group of 2 on one card, and the third on a second?

    Seems odd that I have to take a performance hit to run multiple monitors. So eyefinity can only run on a single card? 4960x1600 will run crap on one card!

    This sucks.
     
  6. xXSebaSXx

    xXSebaSXx Minimodder

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    You can run Eyefinity on a Crossfire setup... So long as all the monitors are fed from one card.

    Here's a review from Guru3d where they did 6 display setup with 1 5870 2GB Eyefinity 6 card (the one with 6 miniDP outputs)...
    They then added a second card (same as above) and ran benchmarks.
    http://www.guru3d.com/article/radeon-hd-5870-eyefinity6-review/8

    And here's a link to a video where I guy manages to get Eyefinity 9 going (using softTH)

    http://www.youtube.com/watch?v=QiYDbdHB548
     
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  7. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    I see. So even if all screens are connected to one card, it still uses the other card too? THAT makes more sense.

    Thanks for the links.
     
  8. xXSebaSXx

    xXSebaSXx Minimodder

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    Yep... the second card is there to boost performance, but I think both cards need to be the same model/speed for it to work properly.

    Here's a bit more Eyefinty pr0n
    http://www.youtube.com/watch?v=N6Vf8R_gOec&feature=related

    4 x 5870 2GB Eyefinity 6
    24 Displays ---> 6 Displays per card - No Xfire
     
    Last edited: 4 Oct 2010
  9. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    I can't be doing with these 6, or even 24 screen set ups because the dead centre of the screen always contains a bezel. IMO it only works with 3 screens. It's impressive as a technical showcase, but in reality, playing games where there's a bezel right in the middle is awful.

    I think I may go for 2x 5870s 2x 20" in portrait and obviously, my 30" in the middle. I don't like wide screens at the side as the camera view becomes too distorted. When you have a 30" as your main screen, you don't need 2 more 30s as they are out of your field of view anyway.

    Someone one here posted up his set up not long ago that has the same - 2x 20" in portrait, and a single 30". It looked sweet!
     
    Last edited: 5 Oct 2010
  10. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    Aaaaaargh!!!

    Eyefinity does not support portrait/landscape mixing!!!


    *******s!

    SoftTH doesn't support DX10 or 11, so can't use that either.


    I'll be damned if I'm buying 2 more 30" panels, and even if I wanted to, I don't have the room for them either.

    That's that plan scuppered.

    :(
     
  11. xXSebaSXx

    xXSebaSXx Minimodder

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    Ok... no need to panic.

    Although P-L-P configuration is not natively supported; some people have succeeded in fooling their GPUs into allowing it....


    Here's a link where the user got it to work...
    http://www.widescreengamingforum.com/forum/viewtopic.php?f=64&t=19007

    And here's a video of the setup at work
    http://www.youtube.com/watch?v=-AEAhExuaaM

    From the thread with the workarround... that trick is game dependant and will only work on some games... And since XFire is not compatible, then performance will take a hit.
     
  12. Jipa

    Jipa Avoiding the "I guess.." since 2004

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    Kinda related, does one of the three screens have to be connected via display port? I heard somewhere that with three screens on one card you can't use two DVI's + HDMI, but need to use Display port + any combination of the rest.
     
  13. Burnout21

    Burnout21 Is the daddy!

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    You sure Mrs pookey is happy with you poking around the darkside, hehe
     
  14. Delphium

    Delphium Eyefinity enabled

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    Indeed ATI does not CURRENTLY support PLP, however this is a feature they are looking to add in a driver update (which update and when however is yet to be known).
    The workaround is essentially just running the game in windowed mode and having it sctretched across all windows, this is while the ATI configuration is in extended mode (ie 3 independent monitors).
    This can also already be achieved with nvidia cards using the same technique.
    Of cause windowed mode usually takes quite a hit on perfomance for most games.

    Correct, the 5xxx series cards have 2 clock generators so they can drive 2 outputs as dvi/hdmi/vga(using a dvi/hdmi to vga adaptor), however the 3rd to 6th (depending on the card) additional outputs are displayport, for which you will require an active adaptor to convert to vga/dvi/hdmi.
     
    Last edited: 5 Oct 2010
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  15. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    Nice links, thanks. Windowed mode really sucks in terms of a performance hit though :(, and apparently won't be using crossfire, so that's not something I'd be willing to spend hundreds of pounds for, as I'll be paying for a performance hit. Not much of an upgrade :)



    Yes, one has to be display port, but you can get display port to DVI adaptors no problem.


    Easy tiger! Or do you mean because she gets a free GTX295? ;)
     
  16. Burnout21

    Burnout21 Is the daddy!

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    You know what i mean sweet cheeks, :hehe:
     

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