I seem to have broken my laptop. I was trying to hook it up to a tv with an HDMI cable. Following the advice on a website I went to "Adjust screen resolution" to try and find the tv as another device and enable that. However there was no other device, so I decided to play around a bit to see if I could get something to , this was my mistake. On one of the drop down menus under the resolution menu I managed to select something which created a second device in the box showing how many displays you have. I was pretty sure it wasn't the tv but thought I'd keep playing around and on one of the other drop down menus I selected something like "expand across both displays"...said soemthing like that, and then that's when the laptop went blank, still a backlight coming from it but nothing but black on screen. I restarted the laptop, the screen showed up the windows starting stuff then the desktop flickered on for barely a second then it went back to blank screen. I can only guess I've created an imaginary device with obviously no display and this is what it is showing now when it's blank.

Hope this makes sense to someone else, not sure it does to me, I really shouldn't mess about with technology.

With some advice from someone else I tried toggling with the fn f buttons, f5 was the only thing that did anything but it just toggles from a light black to a dark black, as it would be if it were turned off. I have tried starting it in safe mode but it doesn't give me the same options, it only has Display - (default monitor) on. When I attach it to the monitor from my pc using the vga cable nothing at all happens, the monitor just says no signal input.

I run Windows 7 on my laptop.

Any help greatly appreciated.