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Thread: How can this work???

  1. #1
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    How can this work???

    Hi there,

    I've just received a job-lot of computer bits. In it was what looked like a standard DVI to D-Sub VGA converter dongle - the type that are as common as that were included with many a graphics card (until recently when DVI-I was dropped!). On closer inspection, it doesn't have the 4 analogue pins (so in effect looks like a DVI-D), but otherwise like a standard dvi to VGA dongle.

    What is the point of this dongle? Surely it has no point as it is not receiving an analogue signal to send to the D-Sub part? Unfortunately I've not got the kit to test it.

    Is it a "fake" dongle?

    Just intrigued as to whether this actually has a point somewhere or is in fact a completely pointless useless bit of kit someone has pointlessly manufactured?

    Cheers!

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    Re: How can this work???

    I think it can use either the 4 pins around the wide-pin or some of the other pins in the main body.

    DVI-A only requires a small amount of pins, I'm guessing yours has ALL the pins to the right of the wide pin?
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  3. #3
    DDY
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    Re: How can this work???

    Maybe someone pulled those four pins to get it to fit in to a DVI-D port?

    EDIT: Which would make a useless adapter.

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    Re: How can this work???

    Hi,

    Yes, all the pins are present on the main bit of the DVI. It essentially looks like a DVI-D to VGA dongle, however, I thought the 4 pins around the long section were the only ones to carry the analogue signal.....

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    Re: How can this work???

    Quote Originally Posted by DDY View Post
    Maybe someone pulled those four pins to get it to fit in to a DVI-D port?
    Hi,

    No, no sign of any damage / removal.

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    Re: How can this work???

    Hmm, digging around there is a very mixed reaction to DVI 24+1 to VGA converters

    I'm guessing some GPUs will output analog over some of the base 24 pins....
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    Re: How can this work???

    We had some Matroxs cards at work that had a connector like that, it split to 2 VGA connectors.


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    Re: How can this work???

    Quote Originally Posted by MaddAussie View Post
    We had some Matroxs cards at work that had a connector like that, it split to 2 VGA connectors.
    Hi,

    I think they are the DMS-59 ones - they look a bit like DVI, but are actually different. Cheers!

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