Blank Screen on HP Laptop

Can you check the function buttons and make sure the primary display is set to show the output on the laptop. Try repairing your OS. If not then re-install the os. As you are saying till the time windows gets loaded, all works fine so it seems the issue isn't really the hardware.

If the inverter board or the back light behind the screen were bad your display would be blank, "but windows would be visible barely" the white screen indicates a bad LCD and must be changed. It is also possible the video cable from the motherboard to the screen has come loose and will need to be reseated back into place to fix it.

Have you tried going to the BIOS? If you can see the BIOS screen there's video and the hard drive could be the issue. If you can't see anything but black screen you probably need to replace screen and or video invertor board.

HI There,

I'm a pro laptop repair/rebuild tech. If you own an external regular computer monitor or even a friend who does, connect the laptop to the external monitor and power it on. Your Toshiba will have an F key with a little icon figure of a monitor on it. Hold down the fn key and press that F key to transfer the laptop display signal to the external monitor.

If the external monitor shows your normal laptop screen as it would usually display, you have a bad laptop LCD and some other (as yet) undetermined problem. If the external monitor is black just like the laptop, then yout video/graphics card has failed and since it's closely associated with power up issues at the beginning of the startup cycle, is interfering with the laptop's ability to run the operating system because it never gets that far.

From what you've described, you're going to have a choice of sending the laptop to a motherboard repair service (if you go to eBay and type "Motherboard Repair Laptop" in the search window you'll see many choices) for a price between $100 and $200 or need to start shopping for new laptop.

Remember, "don't shoot the messenger"!

Good Luck

Doh me, daughter had accidently hit the standby button without realising, had a brainwave after posting above and tried that, everything working fine.

Have you unplugged the power cord to the LCD? Let it sit for a minute, then try it. ALWAYS buy a UPS and plug any computer devices into it. Doesn't have to be big, a $50 unit will protect it from dangerous voltage surges.

same problem, broke my screen, ordered a new screen off ebay and replaced it. now it works fine most of the time but sometimes external display freezes. sometimes goes black, sometimes goes multicolor pixelated (full screen, in blocks, or lines) when this happens sometimes touchpad still works, others not. removing battery usualy temporarily fixes.

I had this exact problem with a customers computer andi found out that HP put faulty motherboards in the DV6000, DV9000, Compaq V6000 Series Computers. Thankfully HP fixing all computers for free and extending the warranty even if the warranty has expired they will ship you a box and you ship it off and they fix it at no cost. the turn around period is about 7 days.

Here is a link to an article that talks about it
http://mattsblog.ca/2007/12/14/having-problems-with-your-hp-pavilion-dv6000-dv9000-or-presario-v6000-series-notebook/

Hope this helps!
NosirromNet

sounds like your lcd screen is on it's last legs...time for a replacement..

ccfl ( cold cathode flouroscent lamp ) is the backlit feature of the lcd panel. If you see a blank screen but do see the output on the external monitor then you sure have to take it to the hardware tech to get the inbuilt LCD panel checked. it seems to be a electronic failure. Thanks Ashish.