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this usually means that the display is broken. i'm sorry to inform that this can only be repaired by replacing the LCD module, which costs quite a lot of money (an estimated 60% of the price for a brand new laptop)
You may have a 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 or appear black. 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 the monitor up first then the laptop, 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
first try to hook it into an external monitor if it looks good,I would have to say you have a damaged cable on your monitor.if you are comfortable taking it apart you can try to reseat the ribbon cable on the mobo.you can usually find an online manual for disassembly.
Connect an external monitor to your laptop, if you get a clear image on this monitor the the video card in the laptop is OK.
The fault could be a defective inverter that supplies high voltage to the CCFL lamp or a faulty CCFL lamp. Most likely a faulty CCFL lamp.
Defective CCFL backlight may has 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) as reached the end of the life and all you need to do is replacing the CCFL lamp
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.
I know not everyone has this ability, but if you can, go to a friend's
house and hook up an external monitor to your laptop. You may need to
use the function keys to switch from LCD to external, but if the lines
go away on the external, you have a bad LCD. If the line shows up
still on the external, then your problem is either:
a) video driver (free, easy fix) b) bad inverter (video 'outputter') ...approximately $10-50/varies + labor costs to replace c) bad video card/motherboard ...usually between $200-$400 + labor to replace
Hope this helps - please be sure to rate my answer :)
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