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Windows 7: Dual monitor problem - 2nd monitor is blank


04 Jul 2011   #1

Windows 7 Professional 32 bit
 
 
Dual monitor problem - 2nd monitor is blank

I have dual monitors set up for extended displays. The monitors are correctly positioned in the virtual display. When I move a window to the second monitor, it disappears from monitor 1 but doesn't show up in monitor 2 - that screen is black. Thanks

My System SpecsSystem Spec
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04 Jul 2011   #2

Windows 8 Pro x64
 
 

Hello, and welcome to SevenForums! To improve your experience with getting help here, you should help us by filling in your system specs. Instructions for doing so, as well as information and rules of SevenForums can be found in this thread. The second post has instructions for filling in your system specs.

This issue sounds like it could be a driver problem. Have you tried reinstalling the driver for your graphics card?
My System SpecsSystem Spec
04 Jul 2011   #3

Windows 7 Ultimate 64bit
 
 

Is the second monitor turned on?

Is the resolution on the second one correct? If you happened to set it too high, some monitors will just go to sleep.
My System SpecsSystem Spec
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04 Jul 2011   #4

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Also is the second monitor set for the proper input setting?
My System SpecsSystem Spec
05 Jul 2011   #5

Windows 7 Professional 32 bit
 
 

Please see system specs now filled in. Yes the monitor is turned on and the display driver has been updated. I don't understand the question about the proper input setting for the second monitor. This dual monitor configuration had worked fine until I moved the equipment from one room to another. Also upgraded from Home Premium to Professional version.
My System SpecsSystem Spec
05 Jul 2011   #6

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Susan,
Which screen is the 2nd non functioning screen? The monitors should have several different types of connections in back, just spin it around and tell me which connection that monitor has ? DVI / VGA / HDMI etc. Likely it has a blue VGA and a white DVI connector, which is being used. Then when you turn the monitor on you must go to it's menu and make sure the connected input is selected to that same input.....hope that helps.
My System SpecsSystem Spec
05 Jul 2011   #7

Windows 7 Professional 32 bit
 
 

The 2nd monitor (the blank screen one) has a VGA connector which is plugged into the computer's VGA port. Where is its menu? Thanks for your help.
My System SpecsSystem Spec
05 Jul 2011   #8

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Do you have the manual for that monitor, otherwise on it should be some buttons for making screen adjustments and I can only hope that one is clearly marked menu, hit that button then with luck you can use the other buttons to move through the menu and see a tab or something called input and make sure it's indicating the VGA input, maybe even move it off and then back on the VGA setting. Are all the cables made properly? on tight and such? You can even switch the monitors to make sure the black one currently still works. Does the back of the video card/computer video outputs have one blue and one white output?
My System SpecsSystem Spec
05 Jul 2011   #9

Windows 7 Ultimate 64 bit
 
 

Check the refresh rate of 2nd monitor. Sometimes it needs to be adjusted. Right click blank area of desktop, select resolution, a new window will pop up and select advance settings, a new window pops up and select monitor tab and then click then select refresh rate and change it from 60 htz to 75 htz.
My System SpecsSystem Spec
05 Jul 2011   #10

Windows 7 Professional 32 bit
 
 

I know the 2nd monitor works because I've connected it by itself as a stand-alone and it works fine plugged into the VGA port. The monitor has blue and white outputs, I'm using the blue one.
My System SpecsSystem Spec
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 Dual monitor problem - 2nd monitor is blank




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