Screen garbled with vertical lines fading to gray

I have a HP pavilion dv8000. I love my laptop. I have an intermittent problem with my display. Sometimes the picture is fine but, at times the screen is garbled with vertical lines that are multicolor fading to gray. If I apply pressure to the back of the screen the lines would go away, now it’s very hard to make them go away. I will move the screen up and down until I find a good spot, I have to hold that spot until I am done. When I let go the lines come back. I am in no way a PC tech person but, I think that I can make this repair myself.

If you do not feel comfortable taking apart your laptop, I would suggest taking it to the service center. You can damage the laptop if you decide to open it up yourself.

Here’s how I troubleshoot laptops with similar problems.

1. That can be connection related problem. I check connection between the video cable and the LCD screen, try reconnecting the video cable. It’s necessary to take apart the display panel, unplug the video cable from the connector on the back side of the LCD screen and then plug it back in. In some cases reseating this connection helps.

2. If reconnecting the video cable doesn’t help, here’s what I do in this case. While the display panel is still disassembled, I turn on the laptop and wait until image appears on the screen. Then I move the video cable a little bit without touching the LCD screen. If moving/touching the video cable affects image on the screen, it’s possible that there is a problem with the cable. Apparently there’s a short somewhere inside the cable. In this case, replacing the video cable may fix the problem.

3. If reconnection the cable doesn’t help and moving/touching the cable doesn’t change image at all and the only way to get better picture is moving/touching the LCD screen itself, apparently there is a problem with the LCD and it has to be replaced.

29 Responses

  1. My LCD laptop screen looks fine if I’m only using it with a battery, do you still think it’s the lcd? The computer has no problems at all if I’m only using the battery and the adapter is not plugged in. Once I plug in the adapter the screen starts to fade. Any advice?

  2. hoyze

    Just 3wiks after i bought an hp650,i was running a CAD program on it wen the screen colour suddenly changed to multicolor.I was so confused cos it’s stil very young to start developing any fault.Wat could be the possible cause of this and how can i fix it.

  3. krystal

    I have a hp mini netbook and when i turned it on today the lefy part of the screen is black with different colored vertical lines through it, could someone help me with what the problem may be?

  4. so my laptop is a samsung , & yeterday i was using it & it was fine but when i went to pick it up & put it somewhere the screen completely changed . it is now like a hundred multi-colored lines going vertical . & across of the lines is a thick black line . & if you put pressure against it , it grows , so its like a huge black dot .. i have no idea what to do to it .. is this a problem that i should just take to a specialists ?

  5. nickfreckle

    It sounds like most of you that are having problems have got laptops with faulty Graphics Chips.

    The GPU’s on HP’s do get very hot, and it is a common problem of them cooking, due to poor ventilation around the machine.

    When the GPU’s are imbedded, and they fail, it’s time for a new board.

  6. My hp zd7000 powers on a green background istead of a black and this sucks.i av try to get the cause but to no success.pls help me.thanks.

  7. I ran into the same problem yesterday. My screen would go from stark white on startup and gradually fade to gray then blue with vertical colored lines. After doing as much research on the problem as I could, I came to the conclusion that my monitor was fried and I needed to replace it. Once I saw the price of a replacement for my Sony VPCF11JFX/B monitor, my hopes were all gone. So, since I believed that the monitor was gone, I decided that taking it apart completely wouldn’t be that big of an issue. Well, come to find out, this problem actually appears to be a loose connection! Problem is, it isn’t actually a cable connection that is loose, it’s a connection from the circuit board behind the screen to the LCD screen itself. By applying pressure to one of the connectors, I was able to restore my screen to proper working condition. It seems that all I needed was a roll of tape, not a new monitor!

  8. Laptop Freak

    benjamin,

    what should i do to over come this.

    To over come what? What is your problem?

  9. benjamin

    what should i do to over come this.

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