I was sitting awkwardly in a chair with my laptop and I think I pressed on opposite corners, perhaps separating something internally. My screen went haywire, splitting into lines that rand up and down, very wavy. Naturally I shut it off. The screen has never turned back on. I attempted hooking up an external screen to see if it was the LCD itself, but that didn't work, so I assume it is the video portion of the motherboard itself. Sound about right? Using my rudimentary knowledge, I dismantled the case, but was unable to find any obvious internal damage, like something being unplugged or snapped. The computer will boot up, there is simply no display.
If it is the motherboard, should I attempt to change it out on my own, or take that in to a professional?
My Compaq Presario M2105's screen stopped working on its own (no trauma) and I did the same thing, I tried hooking up an external monitor when the OS is Microsoft XP. The external monitor came right on and I can use the laptop in that way. Check out the .pdf on their website http://h10025.www1.hp.com/ewfrf/wc/siteHome?lc=en&cc=us&dlc=en
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If the LCD works during the start-up process and then blanks as soon as the OS launches, chances are that the LCD has been turned off via some sort of hotkey function. Many laptops have a hotkey to do this. Is saves power when the laptop is used to run an external display or projector. Check the FUNCTION keys for icons in BLUE. One of them may be a turn-on/turn-off for the LCD. To test it, press and hold the FN button (normally lower LH corner near the WINDOWS key), and then press the blue hotkey and see what happens.
One of a few things may have happened. When the laptop was closed last, there may have been something on the keyboard (pen, toothpick etc) that could have caused the crack - The laptop may have received an impact that she was not aware of - the crack may have been pre-existing (cracked slightly a while ago) and finally gave way. Here's something else I have encountered......When she opens and closes the laptop, does she usually lift the lcd from one corner only, both corners at the same time, or from the centre? If you open a laptop by one corner of the lcd only, you are flexing the lcd every time, and this can weaken it and eventually cause a crack. Also, if you try to open the laptop from one corner, and the lid is still latched, this flexes the lcd as well. Anyhow, Unless your warranty will cover it, go to www.laptopscreens.com and order a new lcd panel. I have ordered from this site a few times now, and their prices are by far the best I have ever seen ($80 average). Order the screen, and if you're not comfortable installing it yourself, take it to a good service shop and have it done.
First to this: check the computer by hooking up an external monitor. If it stays on, then you are no doubt looking at a laptop monitor problem and not a general computer problem. The most obvious thing to check it the power inverter that is in the laptop LCD assembly. The inverter is located below the actual screen. You'll need to disassemble the lid to the computer--separating the two halves and you'll see the inverter sitting just under the LCD screen. These are inexpensive and easily replaced. I'm thinking this will solve the problem.
You have whats referred to as a Bride Screen. This can be bad. You may need to replace the screen, cable, or even the mainboard. Heres a quick way to check if its a mainboard. Power down the computer. With the LCD screen open put the laptop on your leg corner to corner and on the opposite corners apply some lite pressure. Now try to start the computer. If it starts right then you know you have a loose cable or need to replace or repair the mainboard. If it didnt fix it, try the same thing only on the opposite corners. If you get the above mentioned results check what I told you. If you still just get the Bride Screen then your still looking at the same issues. Try hooking up the laptop to another External screen from a desktop and start up your computer. Do you see anything on the screen. If so you may need a new LCD screen or video cable. These are basics but should get you started in the right direction.
Hope this helps... Dale
Not a lot of infromation to go on but here is something to try.
Unplug the laptop
pull the battery out
push and hold the power button for 15 to 30 seconds
put the battery back in
plug the computer
Now see if the light is on saying the computer is charging. If so great!
Now I dont know if your computer is coming on at all or not but if it is not I have a test for you.
Take the laptop with the lcd open and put the base on your leg corner to corner. Lightly press the opposit corners and see if the charge lite comes on. If it doesnt then turn the computer to the opposite corners and do the same. If you find that this brings your computer back you may have bad solder joints on your main circuit board. This is a common thing on some series of laptops in different brands. The dv2000, 6000 and 9000 series HPs and the F series of Compaqs commonly had this solder problem. If you find that your laptop has this problem there are companies that for a reasonable price will fix your mainboard problems and ship your laptop back good as new (or better).
It is a posible LCD problem, Might gone defective.
First trouble shooting is to turn off your laptop completele and the remove the battery and the charger and any accesories connected on yur lap top. Then press the power button for 1 minute. It will reset the settings of your laptop to default if you accidentally press the command for the hotkey to turn off the built in monitor and enabled the extended monitor.
If the issue persist it means it is an issue with the LCD and needs to be replaced.
When you first turn on your computer, do you see anything on the screen? Perhaps, something in the corner of the screen telling you to press F1,F12 or something like that. If so, go in to start-up and see if it will give the option to "start with last known good configuration", if so press the # and enter, See if the computer will boot then, if not do the process over and press "start in safe mode" and if this works you probably have a virus. Please contact me here or e-mail me at firstname.lastname@example.org. I will explain more>
Does sound like an LCD problem, but doesn't sound like an inverter. You might want to tear it down and check the connectors on both ends of the LCD cable, to make sure that they are fully connected. Ron-