Laptop Screen dark yet computer works with external monitor
My Compaq Presario R3000 monitor has gone so dark that I cannot see it. It hasn't completely gone out, the images are there, but too dark to see. Works just fine attached to an external monitor.
When I first turn it on, or walk away from it for awhile, the screen is good for almost 30 seconds, then it goes dim. If I lower the lid, it flashes briefly, then goes dark again. During bootup, it flashes briefly, then goes dark again. It's almost as if there is something overheating that's telling the screen to go dim -- or it thinks its overheating. Any ideas?
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Re: Laptop Screen dark yet computer works with external...
Does the fan work ok? and do you have a laptop holder for it or you just have it on a desk ....get a laptop holder for it if you do not have one and as for the rest goto the power mangment area on the computer and see if the monitor might be on stand by after a few min ...
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Please have it plugged it onto an external monitor to make sure that the problem is not with the LCD. Is there a backlight on the LCD or is it totally dark?
If the external monitor gives out an image it means that the LCD might be busted but do you know the keyboard shortcut to switch between the external monitor and the laptop screen?
You can try FN+ F5. if that does not work you definitely have to try it out on a external monitor.
have you any other A/V ports out ie Svid etc if so try that via an A/V lead, if that works reset your bios settings to minimal settings, if that doesnt work search the 'net someone somewhere has had the same problem! try shining a flashlight/lamp onto the screen whilst booting up, if you see anything on the screen then your inverter is definatly gone and yes it could still be your inverter! your laptop may have software/hardware issues with an external monitor?
1. Remove all USB devices such as printers, mp3 players etc etc.
2. Remove the power-cable and the battery
3. Press and hold the power button for 30 seconds
4. Put the power-cable back in but not the battery and none the USB devices.
5. Turn the computer on
Sounds like the auto-dim in the BIOS is set too low. Fortunately the Compaq R3000 allows you to adjust the brightness right from the keyboard. Hold down the [FN] function key while tapping the [F8] key will brighten the screen, while [FN]-[F7] will dim it. The settings are different for running on AC power and battery, so you must do each individually.
lets check a couple of things. I'm sure you know that a laptop can be hooked up to a external monitor or projector, There is a button usually F5 Or close to it that will turn your monitor off and send it to the external one. In some models of toshiba this will stay in effect even when you turn it off. You can toggle this setting by holding the FN key down and pressing the appropriate "f" key. try this first before you chuck it. There also may be a problem in the bios. Let me know how it turns out. Take care..Be mucho blessed... Mark