My daughter has an IBM R40 Thinkpad that is over three years old. This morning the disply screen began to dim and is now totally black. Even after re-booting the screen will not come on. I connected my dsktop monitor to it and the computer seems to work fine except for the display. A friend who is a programmer told me by phone it could be, the light bulb (?) for the screen has gone out. He thought it was not a simple task to replace.
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This means your backlight has gone out on your lcd screen. Unfortunately the only way to fix this is to get a replacement LCD screen. It is a fairly easy process to replace the screen, however if you do not feel comfortable doing it you should always consult a professional.
The problem youve discribed does seem to point to your back light has failed on the laptops lcd display, i dont know exactly how this would accure just using a projector though, go into bios again and try loading factory settings.
This problem could also be the inverter if you cant make out even a slight image on the screen.
This is a security feature to keep a thief from using a stolen computer.
Find your original sales-receipt, to prove that you are the original owner of the ThinkPad, and telephone IBM, and ask them for assistance.
The IBM beep code error 1 long 2 short beeps means there is a video card fault. Reseat your RAM because the video card uses some of the RAM. If it doesn't work then the video chip on the motherboard is faulty, the only way to fix is to replace the motherboard - this may not be a cost effective solution.
Connecting an external monitor to the laptop won't work because the video card also sends data to the video port.
If the the ram is the problem of your system, there should be a power on light on the system. indicating that some of the component of the system is not working correctly. But since you mentioned there is no light, it is the possibility that the problem is the motherboard itself.
If I understand you correctly you turned off your laptop and since then have not been about to boot up normally, occasionally getting a blue screen. Typically the blue screen also has some type of error message, can you tell us what that is?
You indicate that booting from the CD drive is not possible, is that because you don?t have a working drive? In any case this sounds like a problem with system files or possible a device driver and a CD drive is almost certainly going to be necessary. Let us know the answers to this questions and any other pertinent history relating to this issue and we?ll see if we can help.