Want to use VGA input on projector, only have component and DVI out. source... (1 Viewer)

[DrewHM]

I have a Sharp z9000 projector and I want to use the VGA input because that's a straight pass thru and doesn't use any conversions which allows best picture to be attained. I will be feeding it it's native resolution of 1280x720.

I just got the Comcast 6412 which does not have a VGA output, but does have component and DVI. I have looked for component to VGA cables, and found that it won't work unless I buy a $300 converter. Bummer.

I have since found some DVI to VGA cables for relatively cheap. I am not sure what flavor of DVI the 6412 supports, as the website doesn't say. I'm guessing it's DVI-D. This is my first experience with DVI, so I'm not sure on the specs. Maybe I'm just SOL???

Thanks in advance for your help!

Drew

 

[ChristopherDAC]

Yeah, your best bet is to get a DVI-I to VGA connector adaptor [cheap -- maybe $5] and then just hook up a computer monitor to your ComCast box and see if you have DVI-I support. It's a cheap enough test: if it succeeds, you don't need anything else, and if it fails, you haven't lost anything.

 

[Allan Jayne]

Only DVI-A (DVI connector but with analog video signal at some of the pins) will work as a DVI output to VGA input connection and then only if the analog video is in RGBHV format (or the projector has a manual selection for YUV aka Y/Pb/Pr via the VGA jack).

Video hints:
http://members.aol.com/ajaynejr/video.htm

 

[ChristopherDAC]

DVI-I is the connector with both digital and analog signals present: it will work with a VGA adaptor. DVI-A is fairly useless, DVI-D has only digital signals and will require a transcoder. By standard the video present at the analog pins of the DVI-I interface is RGB-HV, in fact exactly identical to the standard VGA-interface signal and supporting all the same extensions. If you have all the pin positions on your DVI output occupied, you know you have DVI-I.

 

[DrewHM]

Well, turns out I have DVI-D. Bummer. So I guess I need a transcoder if I want this to work. Has anyone heard of Petr's HDC2 transcoder? I can't find anything on it, so I'm not sure of the quality.