I have been trying to connect my laptop to a lcd prjector and it is not working. I have tried pressing F8 and F12 and nothing happens

To restart, press the power button for about 12 seconds. Then restart.

Your bios seems corrupted. You will probably need to reflash from a thumb drive which is bootable. The F2 should get you to booting screen to access the thumb drive to boot from to flash the bios.

Did you press and hold the FN function key plus the key that toggles the display? In your case it might be the FN+F8 if F8 is the key that toggles the display.

Shine a flashlight on the dark screen to see if you barely see the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If the video shows on the external monitor that proves your video card is ok, ,but your lcd screen is bad. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works, then your screen is bad. If you see no icons by shinning the flash light and nothing shows on the external monitor, then most likely your video card is bad.

If your video card is bad you will not see anything on the laptop's lcd screen or the external monitor.

Hi

try this it may help

when pressing the power on key also press the F8 key a couple of times
some laptops are F10 some are F12 some are zero Keep trying the top row of keys
some laptops even require you to press Alt plus the F8/F10/F12/zero key

hopefully if it works it should take you into the factory restore option
then follow the onscreen instructions

good luck

hi alan,,
i think what are u want to do is to inter the BIOS screen, Coz that key u have pressed, is leading u to Bios,, Exept F8 which gives u Options how to inter windows .
try to press (Fn) key when press F2 or else , and do it frecuancly , not in Always pressing>
and dont forget that may there another key lead u to BIOS , Maybe DEL key or TAP..

try to press and hold Fn and F8 - this is to toggle screen setting to ext and back to LCD on laptop. if nothing happens turn off computer by pressing power button, unplug the ac adapter, remove the battery. remvoe residual electricity from computer by pressing power button 10 times. just plug again the ac and leave the battery out. Pres and hold the letter D and while holding that press the power button once and release both of them. it will perform the built in self test on the lcd. if nothing happens, turn off computer. press anf hold Fn and while holding it press power button. it will perform diagnosis on computer. if still nothing happens need to repalce motherboard and LCD.

I took the battery out then put it back in and it works fine now.

First change the boot prioriry from BIOS then boot the computer from CD.