Horizontal line on Toshiba laptop screen

Toshiba / A100
June 22, 2010 at 01:20:02
Specs: Windows XP
I have a very thin (about 1/2 mm) horizontal line
appeared about 5 mm below the top of the LCD
panel of my lap top. Do I need to be worried?

See More: Horizontal line on Toshiba laptop screen

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June 22, 2010 at 05:43:01
See response #5 in the thread linked below.


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June 23, 2010 at 07:49:40
thank you however I am a novice how can I create a all white
scree saver?

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June 23, 2010 at 07:59:08
Read the response #6 in that thread for one idea on how.

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Related Solutions

June 23, 2010 at 08:01:01
I have manged to create all white screen saver. I will run it
overnight. thank you again

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June 23, 2010 at 08:14:24
Try temporarily changing the resolution and see if it is still there. Also, verify the refresh rate is set to 60.

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June 23, 2010 at 11:40:03
WHITE SCREEN SAVER? Are you kidding me? I've never
even heard of such a fix. If that didn't help the person in the
other 6-12-10 post, how is it going to help chami?

- Whenever you have lines on LCD panels, you need to check
the video output on an external monitor first. If that looks good
you can assume your video adapter is ok.

- Then check all the video connections in the LCD, as well as
video connection FROM the LCD to the motherboard. That
requires someone to take it all apart however. If you're not
mechanical, have someone else do it. Pull all the video
connections/cables & reseat them, don't just check them. If
that doesn't work, it's a LCD panel hardware issue or cable/connector issue and replacement of cable/connectors or LCD is needed.

Just another stupid saying...

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June 23, 2010 at 12:32:21

The poster above may well be correct. If the suggestions that originally came from Skipcox don't work then there may be other issues that need to be looked at. If you have a monitor available, by all means try that.

All that aside, there is no harm in trying the white screen saver.

The line may be a defect in the display, a driver issue, cable, graphics circuitry, etc.

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June 23, 2010 at 12:45:09
Let me clarify all this...

The all white screen will fix problems like "burn in" found on old crt monitors. Some lcd's will show a "ghost image" of icons, side bars, and wallpaper on the desktop. This was, aparently, a problem first found on some Mac displays.

Running a pure white screen overnight usually reduces or completely fixes this "burn in" or "image persistence". I've had to run to white screen for a longer period of time on some displays but it's always eventually worked.

And I'm not kidding PCGEEK. I also imagine there's a lot of things you haven't heard of yet.

The A100 is a laptop. Your suggestions are ok PCGEEK, but a performing them on a laptop requires disassembling that thing.

Here's a brief Wiki entry on the subject of image persistence



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June 23, 2010 at 13:06:51
Well Skip, a line is different than image persistence. Of course if chami would have posted a picture of the LCD issue, it may have helped too. AH, but then we techies wouldn't beat each other up over diagnoses & fixes {and that's the fun part}.

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June 24, 2010 at 03:02:51
thank you all for all the coments. I couldn't run the screen saver last night but I will, tonight. The line tends to change color according to the colors of windows opened. I had the white screen saver for merely 15 min and the line became white. I cannot send you a picture using print screen 'cause it does not record the line. I got a picture from a camera and will try and send it. But for the time being I will try skipcox's advice. Thank you

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June 24, 2010 at 04:54:07
The point of the exercise if that it is the easiest fix, if it works.

I agree that trying an external monitor may help determine if it is the display or not and should be tried if chami has a spare monitor available.

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October 1, 2010 at 00:48:58
I am having the problem of horizontal lines on my LCD screen again.(Although i couldn't get it fixed using the white screen last time. I ran it o/night but it didn't work. The line changes to white but that's about it. Now I get another line below the old one on the middle of the screen. And I am freaking out whether I have to replace the whole LCD screen. Is there any method that I could use to fix this? I am willing to learn how to disassemble the laptop and disconnect the video cable and reconnect it or something.( I can use this site http://www.irisvista.com/tech/lapto... please help

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December 6, 2010 at 06:00:10
The problem with assuming that the issue is Image Persistence, is that Image Persistence with LCD displays, is an issue with the LCD display itself. It is not something that Windows keeps on pushing to the monitor. Thus, you cannot capture an image of the Image Persistence with a Screen Capture.

Think about that. Think about that REALLY hard, fellow geeks. A screen capture only takes a snapshot of what Windows is pushing to the screen. A ghost image that has been "burned in" to an LCD panel is NOT being pushed by Windows to the screen. It is a fingerprint left behind in the LCD. It is there whether you continue to use Windows, or boot to a LiveCD. It is damage (temporary or permanent) to the LCD panel itself. Thus, you cannot screen cap an example of Image Persistence.

Think about it this way. Image Persistence is similar to physical damage to an LCD panel. Like a crack in the screen. Imagine that. Crack an LCD screen. Watch in your mind as the black seeps out from that crack, obscuring the desktop. Do you imagine that you could capture an image of THAT by hitting the Print Screen button? No. Because it is not damage to what is being displayed by Windows... it is damage to the screen itself. That is Image Persistence. It is damage to the Liquid Crystals themselves.

Now, the reason why creating a white screen in Windows, and pushing that to the screen works, is because you are forcing ALL the crystals to behave a certain way... including the ones that won't release that ghost image.

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