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Resolution set to 1400x1050, but doesn't look correct.

by NavyGuy27 / November 28, 2009 12:01 PM PST

Hi folks. I'll try to make it quick. I have a Westinghouse LCM20v5 monitor, which supports a resolution up to 1400x1050. My video card is an NVIDIA GeForce 7600 GS and I'm running Windows 7. For the longest time, I've always ran at a lower resolution, thinking for whatever reason, my stuff didn't support anything higher. One day I bought a cheap VGA KVM switch to play with another computer, and at some point in connecting the KVM up, my resolution magically turned to 1400x1050.

Fast forward to now. I unplugged the KVM to directly connect the monitor to my computer, via VGA, and my 1400x1050 resolution vanishes. I uninstall & reinstall NVIDIA drivers, I update to the current prerelease version, and even manually add the resolution 1400x1050x60/70. At this point, it gives me the option to set this resolution, but when it changes, it doesn't even look close to 1400x1050. I tried using 3 different VGA cables, tried using the DVI cable, and even tried reconnecting the KVM is multiple configurations, and nothing. It should be noted that when I run Ubuntu, I'm able to add and use the 1400x1050 resolution with no problems whatsoever.

Thanks in advance!

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(NT) Why not keep using the KVM?
by Kees Bakker / November 28, 2009 8:49 PM PST
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It is...
by NavyGuy27 / November 28, 2009 9:00 PM PST

As I stated in the second part of my post, I reconnected the KVM setup to no avail. It's on the KVM right now actually, and the resolution is still smaller than what it should be at 1400x1050.

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That's a common KVM glitch.
by R. Proffitt Forum moderator / November 29, 2009 4:44 AM PST
In reply to: It is...

It's all to do with VGA signaling. There is a standard in VGA where the monitor sends its information back to the computer via the video card. MANY KVMs are broken in this respect.

SOMETIMES you can tell Windows "Hey, the monitor is a model such and such" to overcome the glitch. But who wants to do that?

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Here is how I would approach this;
by ahtoi / November 29, 2009 2:13 AM PST

start with refresh rate of 60hz. and the resolution as close to 1400x1050 as possible. If it works, then move up the refresh a step and reset the resolution, and so on.

Don't use dvi..unless you want to lock in that 1400x1050 resolution. In that case, the computer video resolution got to be set equal or less than that. That's what I think. Good luck.

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by NavyGuy27 / November 29, 2009 5:23 AM PST

I'm currently at 1400x1050 with a refresh rate of 75Hz, which is all the monitor can support. Do you recommend I try going to a lower resolution, and seeing if things look differently?

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