Black screen - won't boot?

I am having a problem with my new m17x. I shut the lid on the computer, and after coming back opened it up. The screen was black and remained that way. I held down the power button until it shut off, and upon starting it up again it would get to the Windows "start normally" screen, then the Windows logo, then play the Windows welcome sound and go black.

The only thing I had done is turn off crossfire in the Catalyst ctrl center because my screen was having subtle brightness flickering whilst playing games (especially black screens and textures). I thought this was a driver problem, and the games ran fine in single card mode.

Does anyone know what the problem is? How can I fix it?

I got it to boot into windows but it seems there's a second screen attached to it (or so it thinks). I cannot access Catalyst because the primary window is the non-existent one.

EDIT:

Specs: 820 i7, 8 gb ram, dual 5870's. RGB LED screen, in case it helps.

 

Uhhhh, do you have another LCD you can connect to see if your theory is correct?

 

Even if I were to plug in another monitor I'd think it would just see it as a third, but I will give it a try.

I was able to set the "proper" monitor as the main desktop and reboot and now I can use menus. Crossfire is back on, but the monitor "#2" is still there. It's also set at 1600x1200, which is odd. No external monitor has ever been plugged into this machine.

 

If you can see this other monitor in the device manager, maybe it will let you uninstall it.

 

I just tried that and it changed the name of it to "Mobile PC Display".

 

Okay, bigger problem. It appears Crossfire was never actually turned back on. When I turned it on the computer rebooted (like SLI used to be) and I assumed it was normal. But apparently the computer had just crashed. It's not on.

 

Are you using GPU-Z to check if Crossfire is enabled? It will tell you. The only way I know of to enable/disable it is by using the top-most pull down menu in CCC, and I access CCC by right-clicking the desktop. I have zero experience with Stealth mode, but I've heard it disables one card too. It's the touch sensitive button that looks like a speedometer.

 

I'd remove all monitors from device manager and the graphics controllers if i were you. Boot in safe mode and remove them. I think it happened to me when trying to upgrade the VGA drivers. Just uninstall the ATI drivers from control panel>programs and features, and then reinstall them.