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Using an RCA LCD TV as a PC Monitor

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Name: burritonator
Date: November 28, 2006 at 10:01:53 Pacific
OS: Win XP Media Center Editi
CPU/Ram: P4 / 512 MB
Product: Dell XPS
Comment:

I'm looking for some advice concerning some display problems that I'm having.

I just purchased an RCA 32" LCD HDTV (model: L32WD12; spec sheet here: http://tv.rca.com/NR/rdonlyres/8FE5...

I've connected the TV to my PC's video card via the VGA ports on both devices. The video card is an ATI Radeon x850 XT Platinum Edition (256 MB RAM; specs sheet here: http://ati.amd.com/products/radeonx...

The problem I'm having is that there is a bad shadowing affect on the TV when I'm using it as a PC monitor (television looks OK). I refer to the problem as "shadowing" instead of "ghosting", because it is always visible, even with still images such as the icons on the desktop. A good example that I can use to try to explain what I'm seeing is that when my mouse cursor is sitting still, I can see two more "dimmer" mouse cursors to the right of it. This same shadowing effect exists on all graphics, whether on the Windows Desktop, within games, etc. This results in the display quality being very poor.

I've spent a significant amount of time adjusting the display settings on the TV and the Video Card, to no avail. I was able to improve the display very slightly by increasing the contrast setting on the video card; however, I noticed that for all practical purposes, none of the adjustments that I make have any real affect on the shadows. I also updated my video card's drivers to the latest version, but that didn't have any noticeable affect.

So, with all of that being said, here are my questions:

1. Does anyone have any general advice on what might cause this and how I can correct it?

2. My video card has a DVI port, and the TV has an HDMI port - if I connect the video card to the TV using a DVI->HDMI cable, what are the chances that could correct the problem?

3. Someone told me that problems like this were usually related to signal strength. While I'm aware that is an important factor when dealing with coax cable and TV connections, but is the idea of "signal strength" applicable when dealing with a VGA connection? If so, what could I do to improve it?

Thanks



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Response Number 1
Name: OtheHill
Date: November 28, 2006 at 15:59:32 Pacific
Reply:

Are you sure it's OK to connect that TV to the VGA port? ATI manual for 800 series states TV connects Via S-video. You might want to post your query at the ATI site.


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Response Number 2
Name: blackbill
Date: November 28, 2006 at 16:41:41 Pacific
Reply:

No ... you do not want to use Svid!

I have the x850 and when I connect to my 42" plazma I use the DVI to HDMI connect, and I don't have any problems... granted I have never tried the vga connect. But what the heck... try the hdmi connect and see if it solves your problem.


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Response Number 3
Name: burritonator
Date: December 1, 2006 at 09:34:00 Pacific
Reply:

I bought a DVI->HDMI cable, and that solved my problem. The display looks great now, and I'm very pleased with it. Thanks for the tip.


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