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Thread ID: 93449 2008-09-17 05:01:00 DVI limited to 1600x1200 utopian201 (6245) Press F1
Post ID Timestamp Content User
705910 2008-09-17 05:01:00 Hi
When I plug my monitor (native res 1920x1200) into my DVI port, the max supported res is 1600x1200. While 1920x1200 appears on the windows resolution slider, when I set it to that, the screen goes blank and says no signal.

When plugged into the VGA however, 1920x1200 works, but there are tiny screen artefacts (I guess from having to convert a huge amount of digital data to analog, then back to digital again). The max resolution of the card is apparently 2048x1536.

My card is a Geforce4 Ti 4200. Any ideas why the DVI maximum resolution is less than the VGA?
utopian201 (6245)
705911 2008-09-17 05:08:00 Geforce 4s probably do not support high res such as 1920 x 1200. They are quite old, you know. SPARTAN 860 (2618)
705912 2008-09-17 19:17:00 How big is the Monitor?

Unless it is bigger than my 22" wide screen you might need Binoculars to see the ICONS on the Desktop at 2048x1536.

Make sure you have the latest drivers for it but NOT from Microsoft Update.
Bantu (52)
705913 2008-09-17 21:30:00 And when you're adjusting the res, make sure the refresh rate is as low as it can go too. wratterus (105)
705914 2008-09-17 21:50:00 The monitor is 24", native resolution is 1920x1200 @60hz, which is what I'm attempting to set it to.

I've googled a bit, and found that apparently the maximum resolution from single link DVI is 1600x1200. To go higher, you need to lower the the blanking interval. I've tried this through my video card drivers, but it still doesn't work. I'm not sure if the video card is doing it properly though.

Is anyone using a single link dvi connection for a resolution larger than 1600x1200?
utopian201 (6245)
705915 2008-09-17 22:08:00 I think you will need a video card with 2 DVI outputs and a Dual-link DVI cable to get a higher resolution than that

That and a Geforce 4 is probably too old anyway
Agent_24 (57)
705916 2008-09-17 23:34:00 That and a Geforce 4 is probably too old anyway

Too old for 3D usefulness, but not too old for the monitor. It can do 2048x1536.
pctek (84)
705917 2008-09-18 02:19:00 I think you will need a video card with 2 DVI outputs and a Dual-link DVI cable to get a higher resolution than that

That and a Geforce 4 is probably too old anyway

The monitor doesn't support dual link dvi (the dvi cable that came with it is a single link cable).

So I guess no one here uses DVI for resolutions larger than 1920x1200?
utopian201 (6245)
705918 2008-09-20 06:31:00 As a reference for anyone else who has this problem:
The reason my card could go up to 1600x1200 was because it already had reduced blanking enabled (about 130mhz)
With standard timing, the maximum dvi output is 1280x1024.
utopian201 (6245)
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