Will Not Recognize My 2nd Monitor

Dec 16, 2009

I am running Windows 7 Ultimate on a Macbook Pro, and I would like to use the laptop screen as well as my ASUS 23" lcd monitor. When I open the display > screen resolution window, it shows that I have only one display, and gives me no options for multiple displays. The same image is displayed on both screens. My 2nd monitor is hooked up through DVI, and worked just fine with Windows XP. Does anyone know what my problem might be?

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I wish I could tell you my graphics card but I just don't remember.

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I receive a black screen as if to say this something being outputted, but nothing is displayed. Both windows screen resolution and the intel GUI both do not recognize another device. [code]

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Since a couple of days, as soon as I put something in fullscreen, it immediately goes on my laptop, regardless if it's open on my TV or my laptop. I don't remember changing/installing anything that could've changed that...

I checked a bit in the AMD vision software and the Windows control pannel but I can't seem to solve my problem without switching my TV as the main display. I also made a quick search on google as well as here but the problems were mainly with Flash, which isn't in cause here.

Here are my system specs:

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Windows 7 home premium 64-bit
AMD Radeon 6520G

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Jan 6, 2010

I have just did a clean install of Windows 7 ultimate from XP and I am unable to get my dual monitors to work like they did in XP.

I have a DVI Radeon graphics card plugged into the agp slot, and a Nvidia geforce vga adapter plugged into a pci slot of my dell optiplex 755. When I am in the screen resolution settings the second monitor cannot be detected.

In bios I have 2 options under primary video adapter and they are auto, and onboard card. When set to auto the Nvidia card gets a signal but the Radeon does not. There are no conflicts in the device manager, and all of the drivers are up to date.

When I change the bios option to onboard card the Radeon adapter gets a signal but the other monitor cannot be detected and in device manager there is a yellow exclamation mark next to Standard VGA adapter and a code 10 error that states the device could not be started.

I have powered down, and unplugged every cable, I also tried to use the integrated VGA adapter to the Intel G31/G33/Q33/Q35 Graphics Controller but the computer will not even boot. I get

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I have two monitors, both work fine as standalone but Windows will not detect either as a secondary.

Please help me someone, I am so used to having my helpdesk email open in one monitor and all of my other work in the other monitor.

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I recently had an older HP Pavilion Media Center m7760n Desktop PC rebuilt. The old power supply fried the motherboard so I need to get a new power supply and motherboard. Here are my current specs.

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Chipset : Intel G41
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Hard Disk : WDC (1000 GB)


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