Display problem on a HP Probook 6460b

[mercierjulien]

Good morning,

I bought this HP Probook 6460b about 3 years ago. No problem so far, except the battery wich is really bad.

For about a month now, i am having problems with the display. For no apparent reason, or at least no recognized patterns, the screen gets fuzzy, blurred, looking like the lines are not working together. It usually disappear the same way it appears, but sometimes I need to close the laptop and reopen it to make this problem disappear.

the specification of the laptop are here:
https/www.cnet.com/products/hp-probook-6460b-14-core-i5-2410m-windows-7-pro-64-bit-4-gb-ram-320-gb-hdd-series/specs/

but to resume, it is a i5 2410m processor, 4gb ram, and it runs on windows7 64bit.
It has no video card, but an intel HD graphic 3000 processor

This problem already appeared while the computer was under warranty. the screen has been changed, but the problem came back, and now of course the warranty has expired.

I wonder if the problem is harware.

I uploaded 2 pics of the same screen with or without the problem:

Thanks a lot for the help.

 

[webworkings]

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.

 

[mercierjulien]

Hi Webworkings... thanks a lot for your answer.

I did everything you told me, and here is the answer.

As long as the extra monitor was plugged, the problem never showed up. I let the extra monitor plugged for about 3 days and the blur never came back. Note: the 2 screens were displying the same image the whole time.

I then tried to unplugged the extra monitor. In a few hours, the problem reappeared. i then tried to connect the extra monitor while the laptop was on... the two screens dissapeared for a few second, and when they appeared again, the image was fine on both.

I really dont know what to do..

 

[webworkings]

That is very odd. Are you sure the settings on it are not set to be using two monitors, which is causing it to act odd when only one is there (no external). I know some devices have that ability.

 

[mercierjulien]

will try this and see if this could be the problem....

 

[mercierjulien]

tried all the differents settings, and the problem appears again... semms like something is jinxing the problem as soon as I plugged the 2nd screen.

I just realized that I forgot to mention that I already had changed the screen like 2 years ago. the problem stopped, and then came back a few weeks ago....

should i replace the screen once more and assume I will have to replace it every 2 years?
any other thoughts?

 

[webworkings]

When you replaced the screen before, did you replace the ribbon cable? Or was it the same one?

 

[mercierjulien]

I honestly don't know because it has been replaced by the tech guy of HP..

but why? what is your idea?

 

[webworkings]

Well, if there is anything wrong with the ribbon cable, something that is more intermittent rather than constant problem. Say a tear that shifts, it may well just need that replaced. However, if not that, I would start to wonder if there is a flaw in that particular devices display.

 

[mercierjulien]

by that particular device display, you mean in the gpu/vga ????

 

[webworkings]

No I mean the actual physical display, the ribbon cable that connects it.

 

[mercierjulien]

when you speak about the ribbon cable, yu are speaking about this right?
http/informatica.mercadolivre.com.br/pecas-acessorios-notebook/cabo-flat-led-original-hp-probook-6460b-6017b0262803

 

[webworkings]

Apologies, I forgot that HP ones are a tad different. Yes that should be what you are looking for. It will connect from the graphics card or motherboard to the display.

 

[mercierjulien]

sorry about the delay.... Updating:
I replaced the ribbon cable..... few hours later, problem reappeared...

I then ordered and replaced the screen, and so far, no more problem..

It amaze me that changing the screen could be the solution, as I did this 2 years ago, and the same problem came back. But for now, this is the most i could do...

 

[webworkings]

It could be a flaw in their display for that device. It happens. Wish they did recalls like cars LOL