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HP dv8408us display problem

by santiagojegc / February 18, 2008 1:32 AM PST

I have a 1 year-old HP laptop, model dv8408us, windows XP media center edition, Intel Centrino duo processor, nvidia geforce go 7600, and after an automatic windows update, the display started this unusual behavior. I had no anwser from microsoft, undid the windows update and nothing happened, then updated again. HP told me to update drivers and bios, which I did, but everything stayed the same. You see, the white background on every window looks cyan, but not all of it, the black background has like these flickering red dots on the edges, almost like a shadow, and for example c|net's banner on the top of this page should be yellow, right? well, it has these flickering cyan horizontal stripes. What intigues me the most is that these defects on display move while scrolling the screen up and down, and i even tried an external monitor, which displayed no problem at all. Anyway, even the first windows logo when booting or the menu when pressing f8 to boot in safe mode has a red flickering shadow to it. Is it a fisical problem or rather an adjusting/driver/card problem? Can I do something to get rid of this annoying thing?

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"safe mode has a red flickering shadow" = OUCH!
by R. Proffitt Forum moderator / February 18, 2008 1:34 AM PST

That sounds very bad. One more test please. Go get any LiveCD of any current Linux like Ubuntu. Does the display work ok in Ubuntu?

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ubuntu...
by santiagojegc / February 18, 2008 4:01 AM PST

hmmmm.... it is taking forever to download ubuntu. anyway... i get the red flickering shadow even before windows starts... when the hp logo appears when the computer is turned on... what is happening?

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That's a very bad sign.
by R. Proffitt Forum moderator / February 18, 2008 4:06 AM PST
In reply to: ubuntu...

It can indicate a failing video chipset or LCD. The test with Linux is critical.

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done ubuntu thing...
by santiagojegc / February 18, 2008 9:15 AM PST

Well, i made the Ubuntu Live CD and booted my laptop with it, and I am afraid to say that I see the same thing as with Windows... If it is a hardware problem, can you tell me what caused it? I am extra careful with my computer... Thanks for your quick responses.

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WIthout diagnosis of the chips
by R. Proffitt Forum moderator / February 18, 2008 11:04 AM PST
In reply to: done ubuntu thing...

I could only guess it was some chip or display failure. Be sure to keep the warranty in place since out of warranty repair is expensive.

bob

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