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Discussion Starter · #1 ·
Ok, I'm currently looking at buying a used rear-projection CRT HDTV. I can get one w/o DVI much cheaper than with. I want to use this to play games on from my pc. I have a Geforce 6800 GTO, and it has DVI and VGA output. Now what is the max resolution I can send to the tv via the VGA interface compared to the DVI interface? Is 1024x768 the maximum most entry-level HDtv's will accept? Is there any real advantage to going to DVI (yes I know the signal is digital vs analog, but I think analog would be adaquete if it was still at a sufficiently high resolution).


BTW, the tv I'm looking at is Mitsubishi WS-55857.. I think it does 1080i and 480p.
 

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Discussion Starter · #4 ·
Well I think I found the answer, but that'd be great if someone could verify it.

Basically I can only set my video card to either 1920x1080 @ 60hz or 640x480, correct? It should output those resolutions using VGA or DVI.
 

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Pretty much, it can get a little tricky because with analog TVs (like that Mits). "Resolution" is unimportant to it, what it cares about are "timings."


Specifically it supports 33.75kHz horizontal scan rate (1080i) or 31.5kHz (?? 480p) or whatever 480i comes out to be. So you could end up with odd resolutions like 1776x1000 that the TV thinks is 1080i.


Basically you can send something the TV things is 1080i, but Windows thinks is something smaller (to compensate for overscan). Do a search on Powerstrip for more info on these special resolutions.


But yes, 1920x1080 @ 30Hz interlaced is 1080i and [email protected] (or 720x480) is 480p.
 
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