DVI-I or VGA to Component YPbPr - over scanning issues!!!

Hi,

I am looking for a video card that will be compatible with a wide range of HDTV's and old analog TVs.

I have tried 4 different nVidia cards ranging from a 3000 to a 9400GT and they all problems with different tv's; mostly over scanning where the desktop is to big for the screen!

So I have been working with the idea of using an analog component connection (YPbPr) because when I use an s-video or VGA connection the over scanning is gone but so is the quality. The thought is if I use YPbPr it still analog; hence no over scanning, but I still have a higher quality to work with.

The problem is I cannot find a lot on DVI-I or VGA to Component YPbPr. First there are converter boxes or a few select ATI cards.

- ALL-IN-WONDER RADEON 8500 Series
- ATI's Radeon 9500 Series
- ATI's Radeon 9600 Series
- ATI's Radeon 9800 Series

So what's the solution? It just seems so limited, where are the rest of the cards that do this? The over scanning really kills the idea of using HDMI or DVI to connect a PC to an HDTV, so analog seems to be the best bet, plus it would work with some analog tv's, but s-video looks like crap and composite might work but I think it will look like crap too, so analog Component seems to be the way to go..

Thanks,
4dplane

i'm not familiar with this kind of thing but just use YpbPr Video to VGA Converter Box for my videogame console PS3 and Xbox to work with my PC monitor.

i got that thing last month on ishopvideogame, and it worked well.

wish to help you.

You need to separate the 2 parts

Most if not all consumer HDTV's are Plasma or LCD based (not CRT). So these should not have any issues with the over/under scan from your graphics card.

When you refer to older analogue TV's I assume you are referring to CRT TV's. These TV's will only run in much lower resolutions (standard definition or in PC terms generally VGA and you may get away with EVGA on some if your lucky). As soon as your go into any of the HDTV resolutions the older TV will not be able to display it and depending on the actual TV each one will behave differently. You can damage some CRT TVs by trying to run them at too high a frequency.

If you really want some suggestions on controller and interfaces to get a good picture on your CRT TV's can you describe what you intend to do on these as the solutions and cost to do it will vary depending on the intended use.

Hi,

and thanks for the post, its been a while since I've posted and I have solved my problem; well kind of. Basically I purchased an Radeon HD series video card, many types, and it has under and overscanning support in the software. For all TV's I have used so far it has worked. It seems the under/over scanning option only work when the resolution is set to one that the TV can produce; but regardless, it works on all HDTV I have used. As for non-HDTV/CTR's I have not looked into it.

Thanks,
4D

Good to hear you have got it going.

Displays will react differently to anything higher than their native resolutions (all types including CRT. Plasma and LCD) depending on their individual design.

You should never try and run a display at higher than it's native resolution (as I already mentioned).