dv9560 no image but system starts

This happens the last several days:
-On power ON only backlight is on, but nothing appears on the screen (not even ~press F2 to enter setup~).
-Windows boots up (and I can hear skype staring)
-Mirrored external display does not display anything

the last time the image was on screen I noticed whole screen covered with pink lines, and laptop was very hot (but not as hot as it was in summer) and fan was on maximum
even after restarting the display was pink in DOS (on moment it asks for safe mode or normal boot)

I did tear in apart, cleaned the fan and reapplied thermal paste on all heated surfaces, now the fan runs lowest speed but it is still the same

BTW: what is the key combo fn+? to see screen mirror on external ... at least to have that

Thanks for your help!

 

Nvidia video card? If so then it has died. Very common issue.

You can try the motherboard or GPU baking to reflow the solder bumps in the GPU. Or you will have to buy a new motherboard.

 

Yes, Nvidia 8600gs.
What is this gpu baking?
Is there any other way... there were some USB graphic cards for additional monitors, since other stuff works, do you think it would be worth trying?
Do you have any idea roughly how much would new motherboard cost?

BTW: great signature

 

GPU baking: http://forum.notebookreview.com/gaming-software-graphics-cards/385857-baking-gpus-oven.html

Don't laugh, it actually works.

As for a new motherboard, on eBay they run around $130. If HP parts store has them in stock it will probably be around $200 and come with a 90 warranty.

BTW, here's the service manual: http://h10032.www1.hp.com/ctg/Manual/c01951704.pdf

It lists all the part numbers you will need for research purposes. Also, has detailed disassembly instructions.

BTW, thanks for the sig compliment.

 

Hey... My dv9000 just "died" the same way, the video got itermittently bad before dying, such I could only use external monitor in 640x480 16 color. And I stupidly made it worse by shaking it and damaging hdd, such I had to reinstall os from backup.

I did some research and found out older HP dvx000 are known to have GPU failure after a while due to overheating causing cracking of brittle nvidia GPU connects --- because no lead is used to abide by RoHS standards. But this failure can usually be reversed by taking apart your computer and "baking" the GPU to remelt the brittle GPU connects back together. I watched youtube videos demonstrating the process ... it looked like a huge pain and risky, with all the tight parts and screws involved, and I didn't have copper shim and arctic silver they add to improve cooling. So I looked for a repair shop to do it ... as only GPU failure seems to be common problem.

My local repair shop said they could fix it for me in a couple of days for $250. So I mailed it to place that made youtube video for $175, expedited, which took a week. I thought I got decent deal. And when I got it back my good'ol gray mare of 5 year old dv9000 is back and running fine again.

But oh no, it wasn't such a good deal, I was just browsing ebay to check the going price for used dv9000 -- there's seems a healthy market for parts for dead and rebuilt dv9000s. I saw a couple of ebay repair services that say they will fix dvx000 GPU problem for <$100.

good luck

 

A big minus of replacement mobo, you might need to reinstall os. And certain DRM are tied to your hardware, so if you switch hardware you will lose or have to go through customer service to transfer protected videos, software, music you might have.