Compaq laptop Dim display, dying HDD - Related?

Dell / Dimension 2350
December 31, 2012 at 09:37:29
Specs: W XP Home, Celeron 2.00 GHz 256 RAM
(note: this post pertains to a different computer than the one spec'ed below -
HP Compaq NX5000 notebook, 512 MB RAM, WXP Home)

Weird problem, the display on this notebook dims to nearly black only sometimes after boot. You can see the desktop if you shine a bright flashlight on it, so the computer is operating, just no display. Sometimes the display goes out right after the HP splash screen, sometimes several minutes later. Sometimes moving the lid (display) open and closed makes the display come and go. I re-installed the W-XP Home, re-seated the RAM, checked the display cables for looseness, set the powersaving to not hibernate (usually a cold boot gets the display back for a while), set the powersaving to "do nothing" if the lid is closed (pressed the button that gets actuated when the lid is closed, no real major effect). Used a bootable Ubuntu disc to run a diagnostic on the HDD, reports 360 bad sectors. Getting a screen that says Windows is shutting down, etc. Also get "Non-system disk or disk error, replace and strike any key when ready".

What more can I tell you? Is the failing HDD a potential cause of the dim display issue? Something else I may have missed?


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#1
December 31, 2012 at 10:19:13
Is the failing HDD a potential cause of the dim display issue?

No. There i sno connection between the hard disk and the display at all. The dim display is almost certainly caused by the back light failing. It is a relatively simple task to replace it. .

With the hard disk failing as well it might nit be economically viable to spend money on it as you are almost certainly going to need a new hard disk in the near future.

Stuart


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#2
December 31, 2012 at 12:35:05
The dim display is almost certainly caused by the back light failing

Does this notebook have one? I have the maintenance guide and couldn't find anything specifically about it. I'll post a link where I found the manual, if you'd like to take a peek:

http://bizsupport2.austin.hp.com/bc...


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#3
December 31, 2012 at 14:15:54
Does this notebook have one?

Yes it does. If it is and LCD display then it will have back light. LCDs do not produce there own light and need a back light to show anything.

The same principle applies on tiny smart phone screens.

It probably doesn't mention it as it is not considered a user replaceable part. You may need to buy a whole screen assembly. You need to contact GP and see what they say.

Stuart


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Related Solutions

#4
January 3, 2013 at 20:26:06
As far as the display dimming-
1. cold boot gets the display back, sometimes for several hours
2. tilting the lid can make a good display go black
3. I've never seen the tell-tale pink glow at the bottom of the screen as you'd expect with a failing backlight
4. when I had an external monitor connected, it dimmed immediately after the HP splash screen (said it was going into power-saving mode) but the notebook screen would still display correctly for awhile...

All of these make me wonder about the backlight thing. I'm no genius, though.

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#5
January 8, 2013 at 08:54:57
May have spoken too soon about the external display. I said:

4. when I had an external monitor connected, it dimmed immediately after the HP splash screen (said it was going into power-saving mode) but the notebook screen would still display correctly for awhile…

Here's what really happened: What I reported in #4 above happened when I was running within the Windows OS. Just as a test, I put a bootable Ubuntu 9.10 disc in the optical drive, rebooted to the disc and the external monitor diplayed perfectly. That's why I thought it might be a Windows software issue originally.

Back to the lid. So I have the Ubuntu disc displaying perfectly on an external monitor, then I crank the notebook lid open and closed and the notebook display dims but not the external. I'm starting to think cable now but still curious about the backlight-vid card-controller.

I'll have the new HDD installed and Windows re-re-installed by the end of the week and will report back.


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#6
January 10, 2013 at 14:22:28
Just for the sake of updating, I'm posting a link to a discussion I'm having at the HP forum, may shed some light or ring a bell if someone sees something that's been overlooked:

http://h30434.www3.hp.com/t5/Other-...


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