Red lines on laptop screen - card or screen or...

  OxfordRuse 19:35 20 Apr 2006
Locked

...something inbetween?

Hoping you fine peeps can help me with the red lines that appear on my laptop's display. Ever since I took my laptop to a shop for a replacement DC jack (I'd have done it myself, only I'm not confident with soldering), there are flickering red lines all over the screen where certain colours should be (green and blue are the worst - white's unaffected). They're not desperately bad, except when viewing images or video, at which point the screen's awash with them. Oh, and sometimes some blue lines flicker on and decide to join in the action, but then they go again, especially if I give the laptop the tiniest tap.

They appear the second I turn it on, so I'm sure it's hardware related. The repair guy states on the receipt 'VGA cable has been damaged. Recommend replacement', but for various reasons I'm not sure I trust his assessment. Natch, it kinda makes sense that it's a cable problem - like I said, I can tap the notebook to get rid of the blue. But I don't know - for a start, what VGA cable is he talking about?

And if he's right, would that be something I could fix myself? I'm confident taking my laptop apart, I've done it before for various upgrades and repairs, but I this problem is just a leeeeetle bit beyond my ken - hence the request for help.

I'd appreciate a bit of advice and I'm happy to give more info. Thanks!

Greg
(ah, and the card is an ATI Mobility Radeon 9700).

  rmcqua 20:13 20 Apr 2006

I think he's talking about the cable that connects the TFT display to the m/board, and the symptoms sound just about right for this to be the cause of the problem. If you feel up to replacing it, I would.

  OxfordRuse 20:48 20 Apr 2006

Cool! What kind of cable is it, exactly? Could you point me in the direction of where to get one?

Wow, I am the man with the questions today. Thanks for your help and patience.

  Stuartli 23:22 20 Apr 2006

It sounds like a power supply problem.

  johnnyrocker 23:27 20 Apr 2006

in my opinion it is due to either something loose fitting or a dry joint, something which has been disturbed during prev work.


johnny.

  rmcqua 17:01 23 Apr 2006

Sorry for delay, been a bit busy these last couple of days. I'm afraid I bow out when it comes to working on laptops. I have only tried twice and both attempts were unmitigated disasters. It really does require some specialised knowledge of the fixing methods etc. that laptops use in order to achieve the degree of miniaturization that they do.

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