DVI-d to vga adapter question

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melbanoubi

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Dec 6, 2017
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Solution
geofelt
A dvi-I output will have 4 pins surrounding the spade pin.
They carry the analog signal to the 9 pin vga pins.
Without those 4 pins, you need some sort of a active converter to generate those analog signals.
I have seen active adapters with usb aux power that would do that job.
I do not know if it is possible that the other pins of the dvi-D connector can supply the power for that conversion.
Probably best to be certain that the product description explicitly says active and that reviews support that assertion.
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melbanoubi

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Dec 6, 2017
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Yeah, it does look an active one, that's where my confusion comes from, it looks like an active one, but it doesn't say that it is active, so I guess my question is, do the passive adapters look identical to active ones? (an example of an active one is linked in the other response)
 
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geofelt

geofelt

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A dvi-I output will have 4 pins surrounding the spade pin.
They carry the analog signal to the 9 pin vga pins.
Without those 4 pins, you need some sort of a active converter to generate those analog signals.
I have seen active adapters with usb aux power that would do that job.
I do not know if it is possible that the other pins of the dvi-D connector can supply the power for that conversion.
Probably best to be certain that the product description explicitly says active and that reviews support that assertion.
 
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Solution
M

melbanoubi

Prominent
Dec 6, 2017
3
0
510
I see, so unless it specifically says it's an Active adapter, I probably should avoid it. Thanks a lot for your answers, I'll get one of the active ones on Amazon.
 
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