HDX inverter/backlight failure

[gierso]

by the way :

do you know if there is a way to totally deactivate the LCD (in the manner that PC chooses VGA as main display?)

or a way to choose VGA as the main monitor

or a way to make the external monitor to work at boot and not just at windows loaded driver  level??

[HaggisCat]

You can disable the laptop's monitor ounce it's booted, but I don't know of a way to boot into an external VGA monitor. Something like that would have to be done at the BIOS level and the HP BIOS is designed not to be modified. It this case it would be a Insyde BIOS.

 Hit the "Windows" and "P" key and select projector only, with the VGA monitor connected.

 If you have the VGA monitor plugged in when you shut down it may boot into it when you start from a complete shut down.

 I think what would happen is you will see the HP logo and maybe the Windows screen first though before seeing the desk top on the external  monitor.

[gierso]

i think i have tried that before (disabling in windows), but it didnt do that. :/

well i have ordered IT i hope it gets here soon.

if not i would have to try the lamps and the dental floss thing,

one last question for now. the screens you can buy (posted by you for pelikanan) have only the matte one. 

not the glossy , are them both compatible? are them only the LCD and not the bezel/glass?

do you know where to replace the front glass? mine got scratched with the keyboard very earky in my adquisition.

[HaggisCat]

All the screens that I have come across have all been matte, but if you put a glossy one n there, you won't see a difference because the outer plastic covering is very shiny anyway. The type of plastic is called Lexan.

 http://www.polymerplastics.com/transparents_lexan.shtml

 This place has used ones, I have never found a source for new.

 http://www.pchub.com/uph/catf/addtocart.aspx?iid=49242&mode=add&qty=1&page=/uph/model/0--14435-1/HDX...

 I have ordered stuff from this place before and it's OK, he has lots of really hard to find bits and pieces.

 To answer your question, the screen comes by it self with out the bezel and if yours is scratched, then if you buy a used one, you can save yourself the aggravation of removing the screen from the bezel.

 The hard part is getting every little spec out of there before you mount the screen on the bezel.

 The used bezel will still have the tape residue behind, it's best to leave it in place as you will damage the plastic trying to work it off. There will be enough of the old adhesive left to do the job anyway.

[acxel22]

same problem here, screen is very dark, no sign of problem before, just came out of nowhere.

At first when opening the screen it was bright until I stopped holding it. If I pressed where the inverter is, the screen would be bright again (this worked for 5 minutes)

Now it"s always dark. Thinking maybe changing the inverter

[HaggisCat]

Always connect up an external monitor first (if possible) to eliminate mother board problems. You should have a good image with the external even if the computer screen is giving problems.

 I have never come across a situation where pushing on a faulty inverter would bring the picture back, I would try replacing the cable first.

 If not, try replacing the inverter.

 Personally to save time and frustration, I would replace the cable and the inverter and if there is no improvement, then replace the screen.

 Most computer shops would just replace all three to save time on labour and many would just recommend a new laptop. With the HDX series though it's worth putting some money into it.

 Please note that I don't work for HP and I try my best to come up with a diagnosis from the information at hand. There always is the possibility that I could be wrong, but at least the cable and inverter are not too expensive.

[acxel22]

thanks for the input. I tried already on an external monitor and it works no problem.

What amazes me is that when I opened up everything and unplugged/replugged everything, the screen came back to life for a short period of time, seems like a bad connection but everything is tight, gonna see if I want to put time on part per par or just buy the screen and save time

[HaggisCat]

I mentioned the cable because moving the screen back and forth affects the proper working of the laptop or I think you said you had to hold it and it would work for a little while.

 The cable may look fine, but they become internally frayed and disconnected in the hinge area. You can't see this type of wear and tear. It also could be the inverter as well, but with your symptoms it's very hard to tell which.

 I just don't want you to go and spend a pile of money on a new screen and find out later that it was the cable or inverter.

[acxel22]

any ideas where to get the monitor cable?

The only ones I find are pretty expensive, for the inverter it seems easy to find one around 30$

Oh, and when I leave comp running for over 20-30 minutes, the screen comes back to normal until I shut it down for more then a couple of hours. Not thinking changing the display anymore, but if I can find a cheap cost cable, I might start with that

[gierso]

http://www.pchub.com/uph/laptop/637-49234-14435/HP-HDX-X18-Series-LCD-Cable-18-.html

check that one does not seem extremely expensive. from a page haggiscat wrote for me for a LCD bezel replacement. i dont know if new or used, but must be working...

im still waiting for my inverter from ebay,.. should be there one of these days. (bought on march 9 from hongkong to mexico ) after that next step is LCD screen / backlite