Laptop screen turns on, flickers and goes black
Problem description:
The laptop screen turns on properly then flickers and goes black. If you restart the laptop the failure sequence repeats.
Possible cause:
1. LCD screen inverter failure.
2. LCD screen backlight lamp failure.
Tags: Bad image on screen, Screen flickers, Screen goes dark
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.
Laptop screen flickers and after a while goes dark
Problem description:
The laptop screen works fine on startup but after a while the screen starts to flicker and goes dark. If you restart the laptop, the screen turns on as normal but later it starts flickering and goes dark again. Time intervals between screen failure may vary.
Possible cause:
1. Backlight lamp failure.
2. Inverter board failure.
