I have a home theater set up. It uses a heavily shield vga cable to the dlp projector.
I have been thinking about upgrading it to dvi with the new vid card that I picked up that has both.
I hate to buy a dvi 50' cause it will cost me close to a hundred bucks at that length.
I have seen dvi to vga connectors that can be used to send a signal to an analog monitor.
My question is if I used to of these, one one each end of the vga cable, and connected them to the dvi ports on computer and the projector. Would it carry the digital signal across?
2007-10-30 03:54:25 · 5 answers · asked by bjmarchini 2 in Computers & Internet ➔ Hardware ➔ Monitors
No.
It will carry the same analog signal.
The DVI spec includes an analog component to provide reverse compatibility.
DVI-D - digital
DVI-A - analog
DVI-I - both digital and analog.
Even if you chopped of the connectors and soldered DVI-D connectors on it would not work. The impedances are totally wrong between a VGA and a DVI cable. Never mind that you have insufficient conductors in the VGA cable.
I assume that your TV has a DVI-D or HDMI input, otherwise pulling a new cable would be totally pointless.
50' is a long DVI cable, close to the spec limit of 30m. I would really want to test this before you pulled it though the conduit/walls/etc.
The DVI connector is bigger than a VGA too. If that is a problem then try a HDMI cable or a DVI-D to HDMI cable. HDMI is the same signals as a single link DVI-D cable but in a new and improved connector. This is a lot smaller than a DVI connector and would be easier to pull. You then just need a HDMI to DVI-D adapter at the end.
For some more information on DVI, try:
http://en.wikipedia.org/wiki/DVI
2007-10-30 04:25:04 · answer #1 · answered by Simon T 6 · 0⤊ 0⤋
You should look carefully at the genders of the connectors to make sure you don't end up with an incompatible set of cables to put together. I am also not sure a VGA cable is low-loss enough to do the job. Plus you will have signal loss at each of those places where you join the cables through connectors.
You already threw a bunch of bucks into your system. Another hundred for the right cable to make sure it works well does not sound that terrible.
2007-10-30 04:00:22 · answer #2 · answered by Rich Z 7 · 0⤊ 0⤋
VGA, DVI, Component, and HDMI can all carry HD resolutions. I believe HDMI is the only one that supports 1080p24 though. But other than that, you can use all of the others to carry an HD video signal. HDMI is also the only one of the lot that can carry both video and audio. Any of the others and you have to carry audio someway else (either stereo mini to RCA cable from the audio out/headphone jack, or like optical audio if your computer supports it).
2016-04-11 02:39:11 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Go with what Simon T said. He has it exactly right. But don't pay $100 for the 50 foot cable. It is a ripoff. Monster cables and the like play on ignorance.
2007-10-30 16:21:14 · answer #4 · answered by michael s 3 · 0⤊ 0⤋
vga cables are hd ready
2007-10-30 03:57:38 · answer #5 · answered by xgamestar23 2 · 0⤊ 1⤋