Backlight problem I think that my backlight is going out. The computer will turn on normally and go into hibernation normally, but the screen turns off after about 35 seconds. The computer stays on like it is running normally. I use function F5 as I would if I had an external monitor and tap it repeatedly for a bit and the screen comes on for a few seconds, then flickers, then it goes back off again. I haven't had a chance to hook up an external monitor and test that yet. I just have alot of important stuff and dont want it erased when I/ or if I send to to a technician. I need to know if it is the backlight or could it be something else causing the problem.

Looks like somebody was trolling you. When did it start doing this? I suggest trying to turn it all the way off. Then turn it on again. Try fiddling with your power settings. Do you keep pressing the hibernate button accidentally? Press the hibernate button to wake it up. Also, Is there an obvious button that tells the computer that the screen is down. Try pressing that. Fiddle with it. If it started doing this randomly out of nowhere, you might want to do a system restore.

Your computer going into hibernation should not be a problem. When the computer goes into hibernation, it saves all information currently saved in RAM (memory) to the hard drive, and then turns off; to save power. When you turn it on again, it will load what was on screen before turning off, and it should be fine.

There are several reasons that your Toshiba laptop screen may not come on, even if the laptop appears to be running, and several options you may try to get your screen back up and running without an expensive service call.

Common causes for a blank screen include a backlight that is turned off, a display toggled to an external monitor and improper shutdown errors.

To avoid blank screen errors after your current error is fixed, make sure to follow all instructions in your user's guide to care for your Toshiba computer.

Shine a flashlight directly at your screen and look for an image.

If you see one, this means the backlight on your laptop is off but the screen is still working. This backlight normally turns off only when your screen is closed.

Look for a small metal or plastic pin near one of the screen hinges.

The screen pushes this pin in when it is closed, so if the pin is stuck in the screen closed position, the backlight will remain off.

Tap the pin several times to release it.

You may need to use a small object, such as a pencil tip or straightened paper clip, to reach it on some models.

Monitor Toggle

Press and hold down the "Fn" key if you do not see an image when you use the flashlight.

Tap the "F5" key several times while the "Fn" key is pressed.

This will cycle your screen through the various options that toggle the display to an external monitor.

Attach an external monitor, restart the computer and try this method again if no image appears on the laptop screen.

Click "Start," "Control panel," "Hardware and sound," then "Device manager "using the external monitor if you get an image there but cannot toggle the image back to your LCD.

Select the "Monitor" option to expand your selection and select your LCD monitor from the device list.

Click the "Driver" tab and select "Update" to update the driver, as this error is likely caused by a software driver error.

Force Restart

Press and hold the power button until the computer shuts down completely.

Check the indicator lights at the edge of your laptop to see if the computer is truly off or if it has simply gone into hibernation mode.

If it is off, all lights will be off except the battery-related lights if you have a charger plugged in. In hibernation mode, the power light will blink slowly.

Press the power button to restart the computer again after leaving it off for 15 to 20 seconds. This may fix the problem.

If the blank screen returns or you get a flash of images and then a blank screen, move on to the next step.

Force Power Down

Unplug your laptop from the power source.

Remove the battery by pressing outward on the battery latch and pulling the battery unit completely out of the computer.

Press the power button several times to completely discharge the computer.

Replace the battery and plug the computer back in after about 30 seconds.

Press the power button to turn on the computer.

If you get an error screen upon startup, choose to restart Windows normally.

This error is caused by improper shutdown procedures.

Hope this helps

There are several reasons that your Toshiba laptop screen may not come on, even if the laptop appears to be running, and several options you may try to get your screen back up and running without an expensive service call.

Common causes for a blank screen include a backlight that is turned off, a display toggled to an external monitor and improper shutdown errors.

To avoid blank screen errors after your current error is fixed, make sure to follow all instructions in your user's guide to care for your Toshiba computer.

Shine a flashlight directly at your screen and look for an image.

If you see one, this means the backlight on your laptop is off but the screen is still working. This backlight normally turns off only when your screen is closed.

Look for a small metal or plastic pin near one of the screen hinges.

The screen pushes this pin in when it is closed, so if the pin is stuck in the screen closed position, the backlight will remain off.

Tap the pin several times to release it.

You may need to use a small object, such as a pencil tip or straightened paper clip, to reach it on some models.

Monitor Toggle

Press and hold down the "Fn" key if you do not see an image when you use the flashlight.

Tap the "F5" key several times while the "Fn" key is pressed.

This will cycle your screen through the various options that toggle the display to an external monitor.

Attach an external monitor, restart the computer and try this method again if no image appears on the laptop screen.

Click "Start," "Control panel," "Hardware and sound," then "Device manager" using the external monitor if you get an image there but cannot toggle the image back to your LCD.

Select the "Monitor" option to expand your selection and select your LCD monitor from the device list.

Click the "Driver" tab and select "Update" to update the driver, as this error is likely caused by a software driver error.

Force Restart

Press and hold the power button until the computer shuts down completely.

Check the indicator lights at the edge of your laptop to see if the computer is truly off or if it has simply gone into hibernation mode.

If it is off, all lights will be off except the battery-related lights if you have a charger plugged in. In hibernation mode, the power light will blink slowly.

Press the power button to restart the computer again after leaving it off for 15 to 20 seconds. This may fix the problem.

If the blank screen returns or you get a flash of images and then a blank screen, move on to the next step.

Force Power Down

Unplug your laptop from the power source.

Remove the battery by pressing outward on the battery latch and pulling the battery unit completely out of the computer.

Press the power button several times to completely discharge the computer.

Replace the battery and plug the computer back in after about 30 seconds.

Press the power button to turn on the computer.

If you get an error screen upon startup, choose to restart Windows normally.

This error is caused by improper shutdown procedures.

Hope this helps

Try this:

1. Update the BIOS and Video driver to the most current on http://support.dell.com
2. Disable the screen saver
3. Enable HIBERNATE instead of standby in Power settings, set the LCD to go off in 10 minutes, HDD to 15 and Hibernate in 20.
   

Select Shutdown, Hibernate
then try and restart

If no GO, disconnect all peripheral items except KB

Try hibernate again and restart.

If all works OK, add items back one at a time till you find item causing issue. If no go, replace power supply if issue still occurs, replace MB

You probably have a sticking hibernate, or sleep button. Near the hinge, there is a tiny pin looking thing sticking up. When you shut the computer, this presses against a switch below the case and puts the computer into sleep or hibernate mode. If this sticks, it won't boot up right. Shut the computer down and use canned air to blow out at the pin opening to clear any debris.

If it is your computer that is in hibernation then blinking on the monitor light is normal

Just bring your computer out of hibernation and the screen will come back to life too

You could have a defective screen, either a faulty inverter or a CCFL lamp - follow this to determine the fault.

Defective CCFL backlight, it may have the following symptom:

• Screen flashs on red/pink and off.
• Picture stays on in red and slowly be come normal.
• Picture flickering with dim display.
• Picture flickering on and off.

All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Use this.

http://lifehacker.com/5046541/smart-shutdown-offers-more-ways-to-turn-off-your-pc

Hey,

I think this is more of a problem on your computer instead of the monitor, ofcourse you could try another monitor and see if the same happens. I suspect your computer goes into standby or hibernation on its own, and it does work fine if you reset the computer right?

if you go into power management again, disable or turn off hibernation completely, its on one of the pages.
Make sure its not set to standby, and also disable your screen saver.

Right click on desktop - properties - then screensaver. turn it to none.

Also you could look into the computer bios and make sure its not set to standby or hibernation from there. thats unlikely but you could check.

how to get into bios.. depends on the computer, right when you turn it on, on one of the corners of the screen you will get a message, press button to enter setup or bios. press that to enter bios when its presented.

look around the bios and poweroptions.


Let me know if you need anything else.


Thanks,
Ekse