One vertical line runs through image on laptop screen
Problem description:
There is one vertical line running through image on laptop screen. The line running through the entire screen from top to bottom. The line might change colors. Reinstalling software doesn’t fix the problem.
Possible cause:
LCD screen failure.
Laptop has garbled picture on internal screen and external monitor
Problem description:
The laptop has garbled image on internal screen and external monitor. In some cases the garbled image appears as soon as the laptop is turned on. In other cases the video works fine in safe mode but not in normal mode. But the image always fails on both the internal screen and external monitor.
Reinstalling the video driver doesn’t fix the problem.
Possible cause:
1. Shared memory failure.
2. Video card failure.
Lower part of the screen dispaly horizontal lines and flickers
Problem description:
The lower part of the laptop screen displays horizontal lines running from left to right and flickers. Moving the screen makes the image better or worse. The top part of the screen displays image properly. You’ve tested the laptop with an external monitor and the external video appears to be normal.
Possible cause:
1. Bad connection between the video cable and motherboard/LCD screen.
2. Bad video cable.
3. Bad LCD screen.
Stripe running from top to bottom on laptop screen
Problem description:
There is a stripe running from top to bottom on the laptop screen. The stripe could be a few pixels or few inches wide. The image on the left and right side from the stripe is normal. The stripe could be filled with solid color or has many thin vertical lines inside. The strip appears on the screen as soon as you turn on the laptop, even before the operating system starts loading.
Possible cause:
1. LCD screen failure (most likely).
2. Video board failure (less likely).
LCD screen has horizontal lines when adjusting the screen position
Problem description:
Laptop LCD screen has horizontal lines when adjusting the screen position. When the screen is untouched, lines disappear and image on the screen goes back to normal.
As soon as you start moving the screen, lines come back.
Possible cause:
1. Poor connection between the video cable and LCD screen. The video cable is a cable which transfers data signal from the motherboard to the LCD screen.
2. The video cable is defective.
3. The LCD screen failure.
Vertical lines on screen running from top to bottom
Problem description:
Laptop LCD screen display one or more thin vertical lines running from top to bottom. The lines appear on the screen as soon as you start the laptop, even before Windows started loading.
The lines might multiply over time and change color.
The lines appear even in the BIOS setup menu.
Possible cause:
LCD screen controller board failure.
