Laptop start with a white screen with big vertical lines covered the screen, the lines are in multiple sizes, they are not in solid colour, more like a textured shade. Sometime it would appear with just one or two big vertical shaded lines in white screen. Also I hear the fan running fast continuously.
Somebody dropped it
SOURCE: Blank white lcd
Yes, it could very well be a dead LCD unit. I have a LCD in a laptop in the office that has a nasty line running down through the entire screen. We contacted someone about replacing just the LCD portion of it and they said - don't bother. They said it would be more prudent to wait until it dies, and then upgrade to a new computer. It is the nature of the LCD units themselves, when they give up the ghost they give up the ghost.
The fact that you can see everything fine on an external monitor shows that you have lost your LCD. The odds of the cable inside the machine going bad are minimal/tiny to say the least. If they were exposed cables such that they could get crimped, then possibly that could be the culprit. With them being routed inside the unit, it is almost impossible for them to get pinched.
The only other option, and this only works if your machine is still under warranty, is to have HP fix it as part of your machines warranty. BUT, not all warranties cover the screen anyhow. The laptops I have bought required me to purchase insurance on the screen itself.
So, you'll have to determine if you can manage with the external monitor all the time or if you need a new laptop.
Sorry it is not good news for you.
SOURCE: Vertical white line on laptop display
Yes, this is a defective screen. The only fix is to replace the screen. It's called a column of dead pixels. Since it is under warranty, contact HP to have them warranty it out or take it back to the place you purchased it from for an exchange. Please take a moment and give this answer a good rating of fixya. Thank you.
SOURCE: Laptop screen displays vertical lines of various colours
Have you tried to connect your laptop to external monitor?
If you get normal picture on external monitor, then you need to replace LCD screen, but if you get same picture on external screen, then unfortunately you will need new motherboard, because graphics card is integrated to motherboard.
SOURCE: white screen with vertical lines, can't do anything
Can you bootup in Safe Mode?
Press F8 when you bootup.
Then select LAST KNOWN GOOD CONFIGURATION. then check the Device Manager to see if the Video driver is OK and enabled. If OK then shut down and bootup again to see if it boots up normally.
If this doesn't work select SAFE MODE instead of Last Known ......
When Windows starts then select a Restore Point prior to the installation of the driver update and when it boots up again with luck it will be OK. The graphic card update maybe causing the problem.
SOURCE: vertical colour lines on laptop screen, when
HI:
If you can test your laptop, by connecting an external monitor to it, that will tell you if it is a screen problem, or a video problem. If you get a good picture on another display, you have a problem with your lcd or inverter.
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