Nope there no button for this dude...

My son's laptop monitor stayed black and the computer would try to boot and then shut off and restart and this was while it was plugged in. So, I took the battery out, plugged it in and the monitor works perfectly. I put the battery back in, plugged it in to the electric and the same problem, black screen. Took the battery back out, plugged in, monitor working.

My son's laptop monitor stayed black and the computer would try to boot and then shut off and restart and this was while it was plugged in. So, I took the battery out, plugged it in and the monitor works perfectly. I put the battery back in, plugged it in to the electric and the same problem, black screen. Took the battery back out, plugged in, monitor working. the battery is interfering, I suspect it needs replaced.

Same problem, found this site to be quite helpful even though they were using it for a different purpose.
http://www.think.org/conference/setup_laptop.html
good luck

I had same problem.I had a bit of a view on my screen and what i did is connect the lead to my tv or monitor turn the computer on and just guess where my icon was to log in. I logged in on the main screen what view
I had I right clicked on the d pad and I could see some options click on nvidia display and you get more options then click on the one that says screen options then you should see laptop display and what eva your lead is connected to mine is a samsung. Click on that and it should display an icon saying this setting will save in 15 seconds then every time you turn your laptop on it will come on the monitor.

We are a group company separate established in Shenzhen Guangdong province, China.As a specialized in export of laptop parts and accessories, We can provide all the prevalent brands of laptop parts and various types products,such as mainboard,LCD,LED, keyoard,battery, memory, etc.We run mainly brands such as DELL,HP,IBM, SONY and so on.
Our goods based on high quality and reasonable price and gained a good reputation, We sincerely welcome our customers, both old and new to establish friendly and long stable business relations with us

Contact : Chen wenchao
Country / Area : China
City : Shenzhen
Company : Shenzhen Wanxing Technology.Co.,LTD
Telephone : +86-755-83338643
Address : Room 43816, Golconda Electronics Market, Zhenhua Road,Futian District Shenzhen city,Guangdong,China
Zip Code :518000
Web Site :www.chinawxkj.cn
Email : cwc408@163.com sales@chinawxkj.cn
MSN：cwc408@163.com

I had the same problem hooking my dell notebook up to my 42 inch plasma. My notebook screen was broken and every time i plugged the cable into the laptop, it would make a noise but the tv was still black. It worked before, but i couldn't get it to work again. All it took was pressing fn + f8. Hope this helps.

WRONG SECTION to ask this question, go in the hardware section.

OMG thank you thank you thank you ! sooo much for the last 4 months we only had one computer because i broke the screen on my laptop and i googled it and this popped up !!! now it works the fn then F4 thing works Thank you so much

When you hook up a laptop to an external monitor you have to press a few buttons in order to change the output from the internal monitor screen to an external monitor. To do this start u your laptop, and press and hold the function key which is the letters "fn" inside a box. Press and hold this with the corresponding F# key that has the monitor symbol, which may look like this " lOl " or some variation of that. This happened to my brother's old laptop, he broke the screen and I just hooked it up to an external monitor and it worked fine. It m ay not kick on right away with mine, what mine does is it starts up on the external screen then dispears when you log onto the computer, so what I do is I log on, I just type my password because once the log on screen kicks on it automatically puts the cursor in the password box, so I put in my password and I press the function key; "fn" and I press and hold it with F4 which is my external monitor key, then after a few seconds my external monitor kicks back on. Hope this helps!!