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    HELP! Display / Video problem on HP Tablet tx2z. Diagnosis help!

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by lorax1284, Feb 9, 2011.

  1. lorax1284

    lorax1284 Notebook Guru

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    What causes this problem:

    [​IMG]

    I appreciate all help, but I'm looking for a definitive answer... like "It's the video card, I see this all the time, I'm an HP Notebook repair tech" etc., not a lot of speculation, like "it could be the display, or it could be the video card, or it could be the video memory..."... I just want to know what to look for if I tear the thing apart and want to order a replacement part. I don't think a tech should have to PHYSICALLY lay hands on the machine to diagnose this, so that's why I'm posting here.

    I think it's not the display, because SOMETIMES (after the machine has warmed up and I do a reboot) the display is fine... but when it boots from cold, it's like you see in the picture... the screen has two horizontal lines, and between the lines, there is rapidly flickering smear of some of what would normally be displayed inside those regions of the screen.

    I've opened it up and tried reseating the display cable, but getting to the backside of the motherboard is a... mother of a job, and I don't want to spend a lot of time on a machine that will (out of warranty) cost more to fix than to replace.

    This was my first, and last, HP computer: I just would like to get it fixed so I can use it for touchscreen software development rather than having to network into it (negating the value of the touchscreen).

    Thanks in advance for any help.
     

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    lorax1284, Feb 9, 2011
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  2. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    If you pipe it out to an external display, does it do it at ALL? If not then you have a defective LCD or an LCD that is starting to fail. I had an HP notebook
    (not a tablet) and it would randomly artifact, and turns out the LCD was defective.
     
    Tsunade_Hime, Feb 9, 2011
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  3. lorax1284

    lorax1284 Notebook Guru

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    Hi; yes, it seems that the VGA out is fine, so it must be the display panel itself.

    Here's a clearer pic of the symptom if anyone would care to comment.

    [​IMG]
     

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    lorax1284, Feb 11, 2011
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  4. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    Yeah 99.9% sure that is a bad display, occasionally .01% of the time it's a bad cable/connector. Tablet stuff generally are very expensive to get replacement parts for, especially HP ones. See if a local shop can get an estimate for you.
     
    Tsunade_Hime, Feb 12, 2011
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