VGA versus DVI, backlight bleed - 2007wfp

Question

Can someone explain to me the importance of the DVI connection?  I know that VGA is analog & DVI is digital, but why would one want to use DVI over VGA so much?  Is it because of HD capabilities, or what?   My 2007wfp monitor (Rev A00) I got 2 days ago works almost flawless in VGA mode.  Only very slight banding that I could live with.  We haven't been able to test the DVI connection as my video card (Nvidia Geforce FX 5200 ultra) won't support 1680x1050 resolution (only a max of 1600x1200) so I've got to get a new video card :smileysad:.  I use my computer mainly for photo editing, internet/email and some gaming.   Also, has anyone noticed any backlight bleed on their 2007wfp?  This is my first LCD monitor, so I'm not sure I know what I'm looking at, but when the screen is black, I can see some lighter areas in some of the corners.  If I tilt the monitor up, it goes away some, but not completely.  Is some bleeding normal on LCDs?

Dufflover · Answer

VGA vs DVI: Well DVI is better because it means the signal/image is unchanged throughout the whole way. With VGA, the image is converted to analogue, sent over, then reconverted into digital. Google is probably going to get you better info on the difference. Whether the difference is noticeable is a personal thing (a bit like 8-bit vs 6-bit or color banding). If you've been using a VGA connection on an LCD like me for ages then you probably wouldn't notice the difference. At very high res like Dell 30', the difference will probably be more noticeable.   Backlight bleeding: I'm not too sure on this but I think that's backlight unevenness. I found out about that from here (towards the bottom) - I stared at my old LG LCD for ages after that :smileywink: . And backlight bleed is where it comes out from the sides and corners. I found out about that while researching the Viewsonic VX2025WM.   Maybe I've got the definitions wrong; see some of the threads talking about the backlight probs on the 2407 and maybe that'll sort it out :smileytongue: .

gpro · Answer

@Reneesong wrote:

...my video card (Nvidia Geforce FX 5200 ultra) won't support 1680x1050 resolution (only a max of 1600x1200) so I've got to get a new video card :smileysad:

I'm using an FX5200 with my 2007WFP - it supports 1680x1050 (and probably more). However, I have problems displaying fullscreen video over DVI. I haven't figured out what the cause is.

Reneesong · Answer

gpro - when you say that you can't get your's to work in DVI, will it work at 1680x1050 in VGA mode? And when you change the monitor to DVI, it won't display at all? That's what's going on with mine.

Both Dell & Nvidia rep's told me that it'll work in VGA mode, but not in DVI mode. Do you have just the 5200 or the 5200 ultra? Dunno if that would make the difference or not, mine is the ultra.

Either way, I bought a new video card last night (e-Geforce 6200 256mb agp fanless, but bought a fan to go with it in the pci slot) - after rebate it'll only cost $40. So I'm hoping to hook it up today and see just how bad dvi banding is. I think I just noticed my first stuck/swimming pixels (at least 3) on the monitor today too. :smileysad: But I guess that's just part of lcd's from what I've read.

Message Edited by Reneesong on 07-09-200610:42 AM

coolpoete · Answer

I am posting this for all who had similar problems.  I bought a new monitor that has a native 1680x1050 resolution with my current Dell Dimension 4600 with the NVIDIA GeForce FX5200 graphics card.  After several days of googling and frustration I finally found the solution.  You have to make sure all of your drivers are updated from Nvidia's website AND follow these instructions here.  I had to manually tweak the settings on the custom timings to set a manual resolution.    (Of course make sure your monitor supports that resolution)   READ THE WEBSITE INSTRUCTIONS VERY CAREFULLY BEFORE PROCEEDING.  Not doing this right can damage your monitor.  Good luck!!   http://forums.nvidia.com/index.php?showtopic=19854&st=0&p=120690&#entry120690 Message Edited by coolpoete on 12-12-200612:01 AM

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VGA versus DVI, backlight bleed - 2007wfp

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