backlight very unstable after display replacement

i just replaced the previously matte chi mei display on my hp compaq 8510p gb967ea (WSXGA+), with a brand new lg-philips glossy one (both certified for my notebook, of course) and for the first time ever on that notebook (ie. first time since its acquisition summer 2008) i experience backlight issues now.

just like on my very old nx9030 (which happened twice while under warranty, so its been repaired for free, and then once after the warranty period), the backlight keeps turning off by itself or when touching the lid or typing a bit heavier. so i have to close the lid and open it again to make it turn on again!

i watched out for all the cables within the frame and the one going into the inverter board, so none should be squeezed or so.

any idea what i could have done wrong?

shall i open it again and look for a specific cable, jack or something like that, whether something is being squeezed?

thanks

 

also, there is far too much blacks now.. ive got the notebook plugged in all the time, brightness is at its max and i have turned off all the lights inside my room, and there are still too much blacks/dark areas. the colors and whites are ok, but darker colors and shaded areas all appear almost black, so i cannot recognize real colors! should i try different color profiles inside the win 7 color management?

bah thats bad, is there any hope or should i go back to the matte display?

 

If you say you checked the cables the inverter itself is bad. Also the darkness issue you mention means broken display controller in my book. You got a dud, send it back again.

 

i just watched out while fixing the new display onto the frame and closing the outer frame, maybe there still is a cable being squeezed, as i didnt touch the inverter board and before replacing the display there was no backlight issue, and that was just an hour ago. ill open it again and check the cables..

regarding the colors/darkness - its definitely not a display problem, its just completely different than with the matte display. the colors are perfect, but when eg. launching a flash web site with lot of contrast or eg. a game, the "darker" colors, or those under a shadow are far too dark and are very hard to distinguish from real black. on the matte display this was much better...

 

Glossy displays are known for their poor color rendition. If you value color accuracy, what made you order a glossy display in the first place?

 

ok, thanks for that info.

it accidentially broke, so i thought buying just a compatible display would be cheaper and i could have i work faster than sending it in for a repair by HP..

but they obviously sent me a glossy display instead of the matte one, although i checked the matte box and the bill also says matte. then i thought, well at least the glossy one has a real glass surface so it protects the display from such damages, but no! its also as soft as the matte one!

ill call them on monday and request a matte one... thats terrible, especially inside games where the models with dark blue and grey colors all appear black when under a shadow!

 

That's just like the guy that ordered a 12-cell battery and got sent two 6-cells instead... Only in your case it's worse.

The glossy displays are a *little* bit tougher, but they're unusable under any light. Actually, on my DV5 even the LEDs on the touch panel reflect on the glossy screen! I'm saving some money for matte screens for both my laptops.

 

yeah... really bad.

luckily i got the bills and the confirmation mail, both with the display description stating MATTE, so i will call them on monday and ask to return that one and get the matte one. shouldnt be a problem.

only that backlight issue worries me... i never had that on this notebook and now since i replaced that display it really occurs very often. and on the lower right corner where the model name "Compaq 8510p" is written i can see the backlight shining up. pressing there immediately turns off the backlight. but there is no cable from the backlight (it is more to the left towards the center of the display where the backlight is)!

im gonna try opening and taking out the display again and see whether something is wrong...

 

ok, i seem to have solved the backlight problem. there were indeed some cables in the lower right corner being squeezed somehow.

i looked at a 8510p disassemble & inverter board replace guide and there the cables going into the inverter board from the display first went behind the display and then to the front under the display and into the inverter board.

thats the way my cables have been with the old display and i also put them that way, but obviously thats not good. now i placed them completely under the display, not behind it, and now everythings ok.


still, im gonna return the glossy display and request a matte one, as ordered. these colors are terrible (the reflexions, too, but thats not that bad as the shaded/dark colors/blacks)...

thanks for your support!