I use a Dell Inspiron N7010 laptop, and I added 1 VGA monitor and 1 HDMI monitor.
Everything is plugged on the originals laptop output.
With UBUNTU everything was fine from the first startup, and I have all 3 monitors working to extend my desktop.
But with Windows 7, I can only manage to display 2 of the 3 monitors, in the Display setting, I can see the three monitor, but 2 icon are blue and 1 is grey.
When I want to extend the desktop to the 3rd monitor, it will turn on, but another monitor will turn off.
And when I click on "duplicate desktop", it seems to work (all 3 icons are blue) but then I can't apply, I have the message "unable to save display settings" (anyway, I want to extend desktop, not to mirror it)
here's a photo of my installation :
Do you have any idea on how I can make the 3 monitors work with windows 7 without buying more hardware ?
Maybe there is just a little something to set up that I have miss ; or a software to install.
The meaning of "using the display port connection to the laptop in Windows to get all three" is you must to use 'Display Port' to do 3 monitors. But, Well as mr. malmental said, there is many possibilities on your issue, it's maybe that windows drivers are limited to 2 monitors in windows, or drivers are not updated. If it's the card itself I don't think so, because if it is, it will not work on ubuntu too. For me I just will stay away from the windows update utility/tool because they said 275.xx is newest for nvidia when there is 290.51 for my case. You'd better go to AMD website and install it yourself there. Good Luck .