DVI/Normal cables

frosty03

frosty03

frosty03

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Just a quick question. If i buy DVI-DVI cables is the actual cable itself just a normal vga cable with the DVI connectors on both ends?

I want to connect a LCDTV with a DVI input but already have a normal vga cable and 2 dvi converters. Is there any point in buying a DVI-DVI cable or should i just use my current one and just plug 2 converters on both ends?
 
frosty03 said:
Just a quick question. If i buy DVI-DVI cables is the actual cable itself just a normal vga cable with the DVI connectors on both ends?

I want to connect a LCDTV with a DVI input but already have a normal vga cable and 2 dvi converters. Is there any point in buying a DVI-DVI cable or should i just use my current one and just plug 2 converters on both ends?
Click to expand...

No it's not the same. VGA is analogue and DVI is digital. If you plugged in two DVI-VGA convertors you would be not be getting a digital signal to your LCDTV.
 
A DVI-A thingy will (usually) have 4 pins too many to fit in a DVI-I slot unless the LCD manufacturer used the connector that accepts both DVI-I and DVI-A (which isnt often the case)

Just use a DVI-I cable, its less hassle and it will just work :)
 
TKone said:
No it's not the same. VGA is analogue and DVI is digital. If you plugged in two DVI-VGA convertors you would be not be getting a digital signal to your LCDTV.
Click to expand...

That is true, but i am outputting the signal from the DVI slot from the video card (using an adapter plugging in the vga cable) and the cable then goes into the DVI slot into the TV (again with the help of an adapter.

So technically the signal is digital, since it originated from the dvi slot and ends up in a dvi slot, and i do not think the adapters do an ADC conversion.

It isnt getting the dvi cable that is the problem, i have already hidden the current vga cable very well and dont want to dig the whole thing up unless i absolutely have to.
 
frosty03 said:
That is true, but i am outputting the signal from the DVI slot from the video card (using an adapter plugging in the vga cable) and the cable then goes into the DVI slot into the TV (again with the help of an adapter.

So technically the signal is digital, since it originated from the dvi slot and ends up in a dvi slot, and i do not think the adapters do an ADC conversion.

It isnt getting the dvi cable that is the problem, i have already hidden the current vga cable very well and dont want to dig the whole thing up unless i absolutely have to.
Click to expand...

DVI cables / connectors have the capacity to carry both the analogue and digital signals. The four pins around the flat pin carry the analogue signal, while all the rest carry the digital signal.

All the adapters do is take the information form those four pins and put them down the relevant four pins on a VGA cable. Any digital information is "lost" at that point :)

On my TFT, the connector doesnt have the female part for those 4 pins, so any cable/adapter that has them simply will not go in.

In short, you HAVE to replace that VGA cable if you want to use true DVI :)
 
DRZ said:
DVI cables / connectors have the capacity to carry both the analogue and digital signals. The four pins around the flat pin carry the analogue signal, while all the rest carry the digital signal.

All the adapters do is take the information form those four pins and put them down the relevant four pins on a VGA cable. Any digital information is "lost" at that point :)

On my TFT, the connector doesnt have the female part for those 4 pins, so any cable/adapter that has them simply will not go in.

In short, you HAVE to replace that VGA cable if you want to use true DVI :)
Click to expand...

Thanks....

OMFG.... i have to re-lay the cables.... $%"£%$"^$£^$£%"£
 
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