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Laptop Flashes Different Colors


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13 replies to this topic

#1 Albert Frankenstein

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Posted 06 January 2008 - 04:57 PM

Hello,

On my Dell Inspiron 8600 laptop the screen simply showed white/grey and no images, however an external monitor worked just fine. I purchased a used display panel through eBay, installed it, and now the 'new' display panel is constantly flashing between black, red, green, blue, and then white. Pausing about 2 seconds on each color. No other images on the screen. The external continues to work just fine.

Any ideas on what is going on here?

Thanks!
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


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#2 garmanma

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Posted 06 January 2008 - 05:29 PM

All I can suggest is to recheck all your connections
Mark
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#3 Albert Frankenstein

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Posted 06 January 2008 - 05:31 PM

Thanks for the response. I will disassemble and reconnect now.

In the meantime I have updated the video driver, no difference.

I can find others with this exact same issue on notebooks in the DELL forum, but no one has a solution. Some of these threads date back two years. Strange.
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


#4 Albert Frankenstein

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Posted 06 January 2008 - 05:37 PM

I checked all connections (there is only three). Same issue, no difference.
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


#5 Albert Frankenstein

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Posted 06 January 2008 - 05:48 PM

I just ordered a new inverter. Not sure if this will cure the issue, kind of grasping at staws here.
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


#6 rogerdub

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Posted 09 January 2008 - 06:12 PM

I too have the flashing LCD screen on my Dell 5150 laptop. Flashes red, green, blue, white,etc for about 2 seconds each, continues as long as it is powered.

Starts immediately on powerup - I don't see a thing on the laptop. Can switch to another monitor via Fn-F8 keys and all is fine there. And the laptop screen keeps flashing.

Does anybody have a clue?

#7 Albert Frankenstein

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Posted 09 January 2008 - 07:17 PM

I should receive my new inverter soon. I will let you know if that cures the ill.
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


#8 David Andersen

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Posted 19 January 2008 - 12:04 PM

I am having the same problem - an Inspiron 8600 that flashes through the various colors. Dell technical support told me the LCD was fried, so I bought a new unit off eBay, installed it, and that has not solved the problem. Have you had any luck?

BTW, the display works fine on an external monitor - just not the LCD.

Thanks

#9 Albert Frankenstein

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Posted 19 January 2008 - 12:41 PM

I have installed a new inverter, and this had no effect. I have received a new video card and just haven't had the time to install it yet. I am pretty sure the video card replacement should take care of it, but don't know for sure. Stay tuned...
ALBERT FRANKENSTEIN
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Currently home chillin' with the fam and my two dogs!


#10 Albert Frankenstein

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Posted 20 January 2008 - 07:08 AM

HERE IS THE ANSWER:

The video card needs to be replaced.

There are several used ones offered for sale on eBay. In the case of the Dell Inspiron 8600 there is two models: 32 MB and 64 MB. I bought a used 64 MB video card and paid $90 USD, shipping included.

A pretty easy fix, you need to remove the button cover by prying up from the left side, and removing one connection. Then two screws and the keyboard can be peeled back far enough to access the vid card. 4 screws and card will disconnect from the system board.

I replaced the video card and all is well.
ALBERT FRANKENSTEIN
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Currently home chillin' with the fam and my two dogs!


#11 garmanma

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Posted 20 January 2008 - 09:34 AM

Thanks for posting the solution. Glad it's up and running
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
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#12 David Andersen

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Posted 20 January 2008 - 10:40 AM

Thanks for the reply -- someone on the Dell board suggested changing out the system board. I'll try the video card first -- an easier replacement -- especially since your problem sounds identical to mine. Thanks again.

Dave

#13 Albert Frankenstein

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Posted 20 January 2008 - 10:42 AM

Well, on most laptops the video components are a part of the system board. In the case of the Inspiron 8600 there is a separate video card, making this a faster, cheaper and easier repair.

Good luck.
ALBERT FRANKENSTEIN
I'M SO SMART IT'S SCARY!


Currently home chillin' with the fam and my two dogs!


#14 rogerdub

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Posted 30 January 2008 - 11:48 AM

Thanks to Albert Frankelstein (hope I spelled that right).

My Dell 5150 was flashing colors - I bought a 32 Mb video card on ebaby for $20, installed it per the 5150 online Dell manual, and it worked immediately. My old 64 Mb card would have cost a lot more, but I'm not a gamer - the 32 is fine.

Prior to changing the card I had updated the NVidia driver for my GeForce 5200 - to no avail.

So thanks for the tip!!! saved me big $.

Rogerdub
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