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Does the onboard video on the motherboard affect the X windows configuration?

My system has onboard and pcie video. The onboard video is a NVIDIA GeForce 7025 GPU, On Board Graphic Max. Memory Share Up to 512MB(Under OS By Turbo Cache). I have a pcie dual head video card installed with two monitors. The video card is a GeForce 8400 GS, with 512mb memory.

When installing Ubuntu 12.04, only one monitor worked. When pulling up system settings- Displays it shows a laptop. This is a desktop pc. I did get both monitors to work using nvidia using twinview -- A complicated process! When checking nvidia now it shows the monitors disabled. The Nvidia X server setting does show the GPU and all the information.

I was thinking it's seeing the onboard video on the motherboard. Why else would it show laptop?

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Can't you just enable the screen in nvidia X server settings?

Simply run nvidia-settings from the command line and then in the X Server Display Configuration panel where you see your screens, select the disabled screen and click on the configuration dropdown to select TwinView.

I attached a screenshot of my configuration (so it doesn't match yours, but at least we'll be sure we're talking about the same thing :) ). nvidia X settings

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This is how I got two monitors to work. I used twinview. It is like one big monitor two screens. I just went into the nvidia-settings and it shows the displays are disabled. This is what I am looking at now. Before I even tried "Separate X screen (requires X restart). That didn't work at all. If I remember right it went into 2D. I would like it to work as separate x servers. I have run separate x servers years ago when I had to edit the xorg.conf file. –  Timothy Sep 25 '12 at 16:29
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