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Okay i got a laptop from work its a latitude d420. The only problem with it is the screen intermittenly cuts out to way faded you can barely see it. I was told maybe a cable needs to be reseated but who knows. I look inside and everything looks alright except on the left of the monitor that black cable going up into the monitor from the motherboard is slightly scrapped and i can see copper. Wiggling it doesn't have any effect but i can get a great picture out of it if i change the screen resolution or when i first boot up. It seems like anytime i do a major change to the resolution or screen it'll work for 3 seconds then fades. Is this because the system will surge the power for a good connection then it drops? It almost sounds like a power issue and the exposed wire isn't the main culprit. Thanks for any help you may be able to provide!!
The black wire running up the side is likely the 802.11 wireless antennae. It sounds like the back light on the screen is going out, could be a LCD driver board also. I am assuming the video out to another monitor works fine?