Tom's Hardware > Forum > Graphic & Displays > TV/Video Cards > Why does DVI/HDMI look worse than VGA on my HDTV

Why does DVI/HDMI look worse than VGA on my HDTV

Forum Graphic & Displays : TV/Video Cards - Why does DVI/HDMI look worse than VGA on my HDTV

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mardon   06-26-2008 at 10:54:23 AM

I have a Samsung LE-37R87 with a native resolution of 1360x768. I have a 9800GTX when I connect via VGA the image is SO much sharper. DVI has vibrant colours but is not sharp at all. I had to mess around in the NVidia control panel for ages to creat a custom setting and even then I had to pull the image out to fit the side of the screen. It SHOULD have fit at 1360x768!! Whats going on? I should look better shouldn't it?

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Noya   06-26-2008 at 11:13:33 AM
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It's usually 1366x768.

 

And how close are you sitting? You should be at least three feet back.


Message edited by Noya on 06-26-2008 at 11:14:24 AM
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mardon   06-26-2008 at 12:23:49 PM
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I'm giving that figure off the top of my head. It'll be set to the right resolution but i'll cheack.

Yeah i'm sat more than 3 feet back.

Thing is 720/1080i looks spot on through my 360. It also looks sharp through VGA. But I need DVI so I can output my Bluray Disks.

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hixbot   06-26-2008 at 04:41:20 PM
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Your set likely is doing 1:1 pixel mapping while using VGA input. 1:1 is essential for seeing clear fonts, etc. on from a PC.

Find out if you can do 1:1 for your DVI input, and things will look just as sharp. If your set doesnt support 1:1 on DVI, you will need to find the correct resolution to avoid any scaling of the image.
Unfortunately, that resolution may appear overscanned on your set.

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-999-   06-28-2008 at 09:38:27 AM
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A lot of the samsung tvs seem to overscan on dvi/hdmi, mine used to as well. When on the dvi source, go into image settings for the tv and see if there's a "Just Scan" mode. That does 1:1 but it's not default. If it doesn't have it there may be an updated firmware for your tv to get it (as there was for mine).

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cyborg28   07-02-2008 at 06:35:07 PM
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My Sony had the same problem until I discovered Game/Text mode. It enables the required 1:1 pixel mapping and ditches the god awful "Vivid" Colour mode that they use to sell TVs at stores. Maybe your samsung has something similar.

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