I have a vertical cyan coloured line on my laptop screen

SOURCE: vertical lines o my desktop

I hope there is a class action, as I paid $2000 for my ZD8000. I also have the "vertical lines in my display problem", plus the CD-ROM/DVD player stopped working as well. Also, the keyboard is slowly failing. I recently spoke with an HP tech via online chat and he suggested that I buy an extended warranty and then send the notebook in. My original warranty had already expired. I asked for verification that even though the problems began after the original warranty expired that the extended warranty would cover the issues. He said yes. I have the transcript. So far so good. I am making backups at the moment as I look at the shipping box that HP overnighted to me yesterday. HP was very responsive about the problems, although mum with details of what the problems might be concerning the display. Contact me for further info is desired: [email protected]

SOURCE: HOW DO i REMOVE 13 COLOURED VERTICAL LINES ON MY

Your monitor has probibly suffered a power surge at some stage those vertical lines are (kind of) dead pixles.
What it actualy is is the controler chip in teh monitor is slightly cooked sending the wrong voltage to that row of pixles, hence you get teh wrong colors displayed and they can vary in strength depending on what your looking at at the time.
I am sorry to say that the only solution is a new screen most warrantys dont cover that type of problem, and you can only guess what i think about that attitude some companys take.

Testimonial: "very straight forward reply"

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: 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.