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Windows 7: 2 monitors not showing display

31 Dec 2009   #1

windows 7
2 monitors not showing display

Hi Peeps,

I have recently installed windows 7 now for a while. Before 7 I had vista and then xp, both which I used dual monitors.

Since switching to windows 7, dual display does not work any more, I have two monitors which I tried with the addtional main display, both of them power up with the light displayed on the monitor, but there is no input detected by the monitors.

I have swapped my graphics card now twice at pcworld 9800GT pci-e, so I know its not the graphics card.

Monitors I am using have VGA connetions but have a adapter to fit into the dvi port.

One mointor I have tried is this one Octigen-Welcome to Octigen

The other one is a stock flat screen I got from packard bell I have no link for that one.

I have no Idea what I am not doing right, help, something in windows which is not working?

My System SpecsSystem Spec
31 Dec 2009   #2

Windows 7 Professional x64


This is symptomatic of driver issue. Go to the GFX card manufacturer's site and download the latest drivers. If this does not work, there are a couple other things we can try.

Hope this helps,
My System SpecsSystem Spec
31 Dec 2009   #3

windows 7

its plug and play monitor... if it were that easy, id be on to it now
My System SpecsSystem Spec

31 Dec 2009   #4
PooMan UK

Windows 7 Ultimate 64bit

soz determined he means your graphics card drivers .. not your monitors
My System SpecsSystem Spec
31 Dec 2009   #5

Windows 7 Professional x64

Drivers - Download NVIDIA Drivers

Look there for drivers for your card.
My System SpecsSystem Spec
31 Dec 2009   #6

Windows 7 Ultimate 32 bit
Single Monitor

does it work ok with just one hooked up?

check the system tray and look to see if you have Nvidia icon there for video display I have seen that cause problems like this when you try to control the display through windows itself no go but with the software for the card it will work so check the settings for Nvidia twinview make sure it's on
My System SpecsSystem Spec
31 Dec 2009   #7

Windows 7

I concur, update your drivers! Here is more information about drivers: Update drivers: recommended links.

Here is additional information about using multiple monitors: Understanding multiple monitors.

Windows Outreach Team
My System SpecsSystem Spec
01 Jan 2010   #8

windows 7

I have a PNY 9800GT 1 GB.

I have been to the manufacturers website...


I am confused, the one that I bought is G-Force but also PNY, so how am I working out which driver I download, I feel that I have just installed the wrong one.


So am I going to NVidia's site, or GForce, or PNY?

My newest monitor which is a 22" (just to brag) samsung works perfectly, it seems as if Windows is stuck on default setting for 1 monitor.
My System SpecsSystem Spec
01 Jan 2010   #9

windows 7

Okay i've updated my drivers, I've tried using the software to customise mutli display options, nothing works or triggers it at all.

I've tried going back throught the Windows way and customising the mutli displays, its not working.

I've tried to increase the refresh rate more than the monitor can actually handle and then try to move it back down, which doesn't work neither.

I am trying to find out what this nView does maybe that could be a solution.
My System SpecsSystem Spec
01 Jan 2010   #10

Windows 7 Ultimate 32 bit

in Nview you have to enable multiple monitors
My System SpecsSystem Spec

 2 monitors not showing display

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