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Windows 7: another display resolution problem

16 Feb 2010   #1

Windows 7
 
 
another display resolution problem

So I just hooked up a new dell optiplex 780 in our conference room to a projector and the projector is not displaying anything.

The problem is that windows is setting it's resolution to 1920x1080 but the highest resolution it can handle is 1600x1200 so it's not displaying anything at all.

The computer is using onboard intel graphics and also has a dvi add on card for use with the on board graphics and the driver is up to date.

I have the projector connected to the dvi add on card using these dvi over ethernet adapters by iogear: IOGEAR - GVE200 - DVI-D CAT5e/6 MiniExtender, which is why I think windows is detecting it as a 1920x1080 display.

I also have a monitor hooked up to the vga port.

Here's what I found out:

After realizing I did not have any video displaying through the projector I hooked up the monitor and was able to clone and/or extend but only the monitor was working. So I changed the resolution on the projector down from 1920x1080 to 1600x1200 and it starts working fine.

As soon as I unhook the monitor, though I think windows switches back to single display mode and switches its resolution back to 1920x1080. If I leave the monitor connected and change the setting to display through the projector only, it does the same thing setting the resolution too high for it to display anything.

The problem is it won't let me change the resolution before switching to display through the projector only. After you change the setting to display through the projector only, the resolution drop down box is greyed out and there is a message saying you must select Apply before making additional changes. So, I hit apply, but I can't see what I'm doing to lower the resolution.

After messing around a bit it seems windows saves the resolution settings for clone, extend etc. If I switch to clone mode and change the resolution and switch back to extend, the resolution changes back. So, when I switch to use display one (projector) only the resolution is changed to 1920x1080 so I think as I cannot see it.

Does anyone know any possible solutions?

Thanks.


My System SpecsSystem Spec
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16 Feb 2010   #2

Windows 7
 
 
I figured out a quick solution

I rebooted and hit F8 to get to the advanced boot options menu.

I selected "enable low resolution video" and it booted into windows setting the resolution for the projector to 640x480.

I was then able to change the resolution and everything is good now.
My System SpecsSystem Spec
17 Feb 2010   #3

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Welcome to Seven Forums. I just wanted to thank you for posting your resolution of this issue. Fabe
My System SpecsSystem Spec
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 another display resolution problem




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