Can't extend desktop...

[therealdrag0]

I have an Alienware Aurora m9700 with SLI NVIDIA GeForce Go 9700 GS graphics cards. I got a Hanns G HW191A monitor and I'd like to extend my desktop onto it. But I have been unable to.

When I click the "Extend my Windows desktop onto this monitor" boolean box under Display Properties > Settings, it then makes the two preview rectangles black (instead of one grayed out). But then when I click apply, my laptop screen goes black for a second and then comes back on as if nothing happened. Nothing else is changed, and the "Extend..." box is now unchecked..

Thoughts?

Thanks.

 

[gimp]

I've never worked on a laptop where I could extend the screen onto an external monitor.

 

[Demon10000]

I've never worked on a laptop where I could extend the screen onto an external monitor.

I've never worked with one where I couldn't. Usually it's the laptop display as one monitor, and the port in the docking station as the other. If you've got two ports on the laptop, I would definitely see if it's compatible. If it is, try updating the video drivers...

 

[therealdrag0]

Yeah. It works fine on my 10" MSI Wind laptop. But I can't update the drivers on my Alienware because it's a from Alienware and no further ones are compatible.

 

[therealdrag0]

Woop I figured it out. I went and got the drivers and installed them. And as they installed a bubble popped up saying essentially, "SLI now enabled, one of your screens may have gone black." And then the metaphorical light bulb went on. So after I disabled SLI it works.