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Laptop screen issues - backlight or graphics card?

Sink41

Member
This is not my laptop, but a friends. A while back his backlight stopped working. It would turn on for a second or two when the screen was opened then turn off. The monitor would still be trying to display the desktop just without the backlight, and his external port still worked fine. Same thing happens in linux and xp.

He found a computer repair shop online, and guy came and met him in a pub(!) to pick the up laptop off him. They said they tried replacing the FL inverter and backlight twice, and apparently the backlight worked for a bit longer but then again turned itself off. They also said they saw a brown stain on the graphics chip, and said it was probably broken and needed a motherboard replacement to fix, something they couldn't do. Laptop is of the make Toshiba and is out of warranty.

The fact that the external port still works and that he had the laptop taken off him in a pub rather than a place of business makes me a bit suspicious. Should he try getting it repaired at another place at the risk of losing more money or give up and continue using it as a desktop/buy new laptop?
 
External port working means the video card is fine. Its almost certainly a bad inverter or the CCFs themselfs are going bad.
 
The place it was taken for repair is obviously a schlock house. Mpilch is correct - if the external video works, it is being produced by the same graphics chipset, so that does not seem to be the problem.

What happens next is the old cost-benefit analysis. Some money has already been spent. Get a repair estimate from a bonafide Toshiba repair center, and weigh all that against the value of the laptop. My sense is that it may no longer be economically repairable. The desktop role makes it useful. Replace it down the road when portability/travel dictate it.

http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/gaspLocator.jsp?subs=tais
 
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