Laptop screen shows vertical dotted lines
Problem description:
The laptop screen shows vertical dotted lines. The dots are red and moving up and down. The external monitor connected to the laptop either has garbled image or shows same dotted lines.
Possible cause:
1. Failed memory.
2. Failed video card.
Tags: Lines on screen, Video garbled
Laptop has a few colorful lines on screen
Problem description:
The laptop has a few very thin colorful lines on the screen running from top to bottom. These lines are vertical and spread with irregular intervals. Lines appear on the screen even on the BIOS level.
Possible cause:
LCD screen failure.
Tags: Lines on screen
Horizontal flashing lines running across the image on laptop screen
Problem description:
There are horizontal flashing lines running across the laptop screen. The laptop starts fine and you still can see the picture, but there are flashing lines running across a part of the image.
Possible cause:
1. Video card failure.
2. Bad connection between video cable and LCD screen.
3. Bad LCD screen.
4. Faulty video cable.
Green vertical line on laptop screen disappears when screen tapped or moved
Problem description:
A green vertical line appears on the laptop screen. If the monitor is slightly tapped or moved the line sometimes disappears.
Possible cause:
LCD screen failure.
Wide vertical stripe blocks image on laptop screen
Problem description:
A wide vertical stripe blocks image on the laptop screen. Everything works fine on the left and right sides from the stripe.
Possible cause:
LCD screen failure.
Transparent stripe on laptop screen
Problem description:
The laptop screen has a transparent stripe running from top to bottom. You still can use the icons on the desktop located behind the transparent stripe.
Possible cause:
LCD screen failure.
Tags: Lines on screen
Horizontal lines on laptop screen when display moved
Problem description:
Horizontal lines appear on the laptop screen when the laptop display panel is moved. Video on the external monitor works fine even when you move the laptop display. This problem appears only on the laptop screen.
Possible cause:
1. Poor connection between video cable and LCD screen.
2. Bad video cable.
3. LCD screen failure.
Lines running through the logo on laptop screen
Problem description:
When you start the laptop, there are lines running though the manufacturer’s logo. Windows will not load. Same lines running through the logo appear on the external monitor.
Possible cause:
Video card failure.
Laptop has transparent vertical stripe on screen
Problem description:
The laptop has a transparent vertical stripe on the screen running from top to bottom. You still can see the image behind the stripe, but it’s not as bright as image on the rest of the screen.
Possible cause:
LCD screen failure.
Laptop screen has horizontal white stripe
Problem description:
The laptop screen has horizontal white stripe. The stripe appears as soon as the laptop is turned on and runs even on the initial screen with manufacturer’s logo. When the laptop is booted to the desktop, the image behind the stripe is not visible. The rest of the screen works fine.
In some cases the stripe can be transparent.
Possible cause:
LCD screen failure.
