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Running 3 screens off a splitter???

Discussion in 'Hardware' started by michael78, Mar 7, 2008.

  1. michael78

    michael78 Terabyte Poster

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    Can anyone clear this up I have a PC that is running two screens using a cable splitter on a graphics card with only a single DVI connection on the card. They want to be able to connect a projector to this as well so basically run three screens. I've said you can't do it as you can't split the connection further. He insists they have this in another office. Am I missing something here?

    From my understanding you would either need special hardware to do this but can't simply split the connection further.
     
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  2. greenbrucelee
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    greenbrucelee Zettabyte Poster

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    Not sure but I have a mate who runs 4 screens of two graphics cards, can you not get a connector for the S-Video port for the projector?
     
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  3. Fergal1982

    Fergal1982 Petabyte Poster

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    depends how you mean. if you mean three identical outputs, then couldnt you just split the output, and add another splitter to the end of one of the connections - that would give you three outputs (all the same output though). The quality might be a bit shite though.

    GBL - your mates cards will likely have dual output connections, to enable them to run to independant monitors from the one card - two cards equal 4 monitors.
     
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  4. michael78

    michael78 Terabyte Poster

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    not sure if it had an s-video output, I'll have to check.
     
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  5. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    And you can buy units that will drive multiple screens from one socket. It amplifies the signal so the poor quality that comes from connecting screens in parallel is removed.

    The other problem with connecting in parallel is the system where the video card queries the screen for its capabilities. This can get confused with simple parallel operation.

    Harry.
     
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  6. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    S-video would be fine for TV style output. Not very good for data (i.e.windows desktop).

    Harry.
     
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  7. Liqua

    Liqua Bit Poster

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    As per what Harry said - an example of such is here

    I am sure you will be able to purchase something similar from a local IT store.

    Liq.
     
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  8. Modey

    Modey Terabyte Poster

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    It's also possible to have 3 seperate screens from a single video card with an extra box from Matrox. Quite clever stuff if you needed that facility. Or spread one massive desktop across 3 widescreen monitors etc..

    Looking at a couple of hundred for for something like that though.
     
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  9. Phoenix
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    Phoenix 53656e696f7220 4d6f64

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    Business 2d cards generally have propietrary connections to power up to 4 monitors from a single interface

    that said a standard DVI connection can often not be broken down to more than two analogue signals
    with PCI-E you could just put in another 20 quid graphics card to power the projector
     
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