Question about HP Pavilion dv4000 Notebook
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Posted on Jan 02, 2017
SOURCE: Thick Black Line on Screen
This is caused by dead pixel sensors. There are hundreds of pixel sensors at the edges of the screen, when they go out it will cause a line varying in size depending on the amount of sensors that go out, and the line can vary in color, red, blue, green, white, and black. Unfortunately, the only fix for this is to replace the screen.
Posted on Jul 30, 2008
The normal cause of lines across the LCD of a laptop is a damaged video
cable. The unusual cause would be the video card itself.
To determine which item is at fault, you need only attach an external monitor to your laptop's video-out, and then swap your monitor view to 'both' or mirrored (usually just the function key (FN), plus one of the Fkeys...look for an off-blue picture of a monitor on the Fkeys).
If the lines across the screen also appear on an external monitor, then the video card is damaged.
If the lines only appear on the laptop's LCD, but not the external monitor, then just the laptop's internal video cable is damaged.
Hope this helps.
Posted on Aug 21, 2009
how old is your laptop?
try running a powerfull anti-virus.
back up everithing in your hard drive (image file if u can) and recovery CD so u reset it to factory defaults. if it's still getting worse. go to a repair store, monitor or video bus is malfuncioning.
Posted on Sep 03, 2009
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