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Re: HP Pavillion dv9000
Before you spend $200 for a new lcd screen; may I interject; Please test your computer by hooking it up to another monitor if you get the same result; place your computer in the freezer for about an hour then start it as this model of computer is famous for overheating the nvidia video chip also the tiny fluorescent tube called a cold cathode has beeb found to glow red when about to fail the cathode can be purchased onlin at: laptoppartsdirect.com or, e-bay almost always the only reason to replace you lcd is: breakage or, bad pixels.
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Due to the overheating issues with the dv9000's it's more than likely the motherboard has gone bye bye. You can try plugging your laptop to a regular desktop monitor to see if it's the screen; but you would have heard it chime on if that was the case. Unless you had your volume muted before the incident. Try checking the RAM (one by one), then remove the hard drive and see if you see any graphics. If none of those work, prepare for a dv9000 funeral or punt!
Flickering is a back light issue, jumping around would be caused by the screens reaction to a bad inverter and so would the backlight as well. So flickering backlight and jumping would be a inverter issue causing both problems so I would replace them both.
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My thoughts is that you may have had a Microsoft update to which has knocked out your drivers for these features. You may have to go back to HP's Web site and re-load the drivers for these two features. Blessings, A/V Media Guy
The failure is due to the vram on the mlb (systemboard). Good news is this is a common failure for the Intel's and is readily fixed, prob is the vram and nVidia chip need to be reflowed using a BGA machine (about the price of a Lexus).
Without a viable repair option, you'll need to replace the mlb. Part# located in the memory bay (middle cover underneath the laptop), and expect to pay upwards of $450 from HP for just the part. *** BEWARE getting this part from a 3rd-party vendor, as they may NOT have reflowed the chips and have the issue resolved