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Re: Need to find source of LCD artifacts

Discussion in 'Notebooks' started by M.L., Sep 24, 2010.

  1. M.L.

    M.L. Flightless Bird


    >> I'm trying to find the most likely cause of artifacts on my laptop LCD
    >> screen that appeared after I had a tech install a new bezel, hinges
    >> and cover for the LCD screen.
    >>
    >> HP Pavilion DV9608nr, AMD Turion 64 X2 @ 1.90 GHz, 2 GB RAM, 250 GB HD
    >> Vista Home Premium 32-bit
    >> NVIDIA GeForce Go 7150M (UMA)
    >>
    >> The problem remains even after upgrading to the latest NVIDIA drivers.
    >> The artifacts appear as thin vertical greenish stripes on my desktop
    >> background and on the client portion of applications. It does not
    >> appear on areas such as the title bar or status bar. When I took a
    >> screenshot of my desktop, the saved image did not display the
    >> artifacts on another computer.
    >>
    >> Before I go back to the tech I'd like an idea of what might be the
    >> source of this problem. Thanks.

    >
    >I had a slightly similar problem on a Dell D600 laptop. Oddly
    >distributed patches of green pixels, sometime flickering.
    >
    >I found that the edge connectors on the cables from the screen to the
    >mainboard were not tight, and had to be reseated. Since the tech has
    >done some physical work on your screen, this seems at least a possibility.
    >
    >BTW, those connectors are TINY and DIFFICULT TO WORK with.


    I took the laptop to a tech service that specializes in laptop screen
    replacements. They diagnosed the problem as a malfunctioning LCD
    screen cable (part # 447986-001). Apparently the original tech damaged
    it during his service. The specialists are charging me $120 labor, and
    the used part costs about $50+ on eBay.

    Turns out it would have been cheaper to let the more expensive
    specialists fix the screen in the first place.
     
  2. BillW50

    BillW50 Flightless Bird

    In news:0quq96plmmnpq5es5svjf784edo756rqmu@4ax.com,
    M.L. typed on Fri, 24 Sep 2010 23:40:28 -0500:
    >>> I'm trying to find the most likely cause of artifacts on my laptop
    >>> LCD screen that appeared after I had a tech install a new bezel,
    >>> hinges and cover for the LCD screen.
    >>>
    >>> HP Pavilion DV9608nr, AMD Turion 64 X2 @ 1.90 GHz, 2 GB RAM, 250 GB
    >>> HD Vista Home Premium 32-bit
    >>> NVIDIA GeForce Go 7150M (UMA)
    >>>
    >>> The problem remains even after upgrading to the latest NVIDIA
    >>> drivers. The artifacts appear as thin vertical greenish stripes on
    >>> my desktop background and on the client portion of applications. It
    >>> does not appear on areas such as the title bar or status bar. When
    >>> I took a screenshot of my desktop, the saved image did not display
    >>> the artifacts on another computer.
    >>>
    >>> Before I go back to the tech I'd like an idea of what might be the
    >>> source of this problem. Thanks.

    >>
    >> I had a slightly similar problem on a Dell D600 laptop. Oddly
    >> distributed patches of green pixels, sometime flickering.
    >>
    >> I found that the edge connectors on the cables from the screen to the
    >> mainboard were not tight, and had to be reseated. Since the tech has
    >> done some physical work on your screen, this seems at least a
    >> possibility.
    >>
    >> BTW, those connectors are TINY and DIFFICULT TO WORK with.

    >
    > I took the laptop to a tech service that specializes in laptop screen
    > replacements. They diagnosed the problem as a malfunctioning LCD
    > screen cable (part # 447986-001). Apparently the original tech damaged
    > it during his service. The specialists are charging me $120 labor, and
    > the used part costs about $50+ on eBay.
    >
    > Turns out it would have been cheaper to let the more expensive
    > specialists fix the screen in the first place.


    Thanks for the update! Everything makes total sense to me. And yes,
    sadly you are right. Maybe the original tech might give you something
    for your trouble, Well it is worth a shot anyway.

    --
    Bill
    Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC
    Windows XP SP2 (no room for Windows Updates)
     
  3. M.L.

    M.L. Flightless Bird


    >>>> I'm trying to find the most likely cause of artifacts on my laptop
    >>>> LCD screen that appeared after I had a tech install a new bezel,
    >>>> hinges and cover for the LCD screen.
    >>>>
    >>>> HP Pavilion DV9608nr, AMD Turion 64 X2 @ 1.90 GHz, 2 GB RAM, 250 GB
    >>>> HD Vista Home Premium 32-bit
    >>>> NVIDIA GeForce Go 7150M (UMA)
    >>>>
    >>>> The problem remains even after upgrading to the latest NVIDIA
    >>>> drivers. The artifacts appear as thin vertical greenish stripes on
    >>>> my desktop background and on the client portion of applications. It
    >>>> does not appear on areas such as the title bar or status bar. When
    >>>> I took a screenshot of my desktop, the saved image did not display
    >>>> the artifacts on another computer.
    >>>>
    >>>> Before I go back to the tech I'd like an idea of what might be the
    >>>> source of this problem. Thanks.
    >>>
    >>> I had a slightly similar problem on a Dell D600 laptop. Oddly
    >>> distributed patches of green pixels, sometime flickering.
    >>>
    >>> I found that the edge connectors on the cables from the screen to the
    >>> mainboard were not tight, and had to be reseated. Since the tech has
    >>> done some physical work on your screen, this seems at least a
    >>> possibility.
    >>>
    >>> BTW, those connectors are TINY and DIFFICULT TO WORK with.

    >>
    >> I took the laptop to a tech service that specializes in laptop screen
    >> replacements. They diagnosed the problem as a malfunctioning LCD
    >> screen cable (part # 447986-001). Apparently the original tech damaged
    >> it during his service. The specialists are charging me $120 labor, and
    >> the used part costs about $50+ on eBay.
    >>
    >> Turns out it would have been cheaper to let the more expensive
    >> specialists fix the screen in the first place.

    >
    >Thanks for the update! Everything makes total sense to me. And yes,
    >sadly you are right. Maybe the original tech might give you something
    >for your trouble, Well it is worth a shot anyway.


    I've decided not to mention any of this to the original tech. I'll
    simply use his inexpensive services for desktop repairs and less
    breathtaking laptop repairs.
     

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