Dell Inspiron 8100 Flickering video

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My father has a Dell Inspiron 8100 that has a video problem.

This Dell has the ATI Radeon 7500 Mobility card.

At first, the problem was that sometimes on the desktop there were
vertical lines and "boxes" around the mouse.  Wasn't bad and only
happened at certain times.

Now, the video sometimes is completely distorted with horizontial,
vertical, wavy lines.  Sometimes you can even read the scree.  Almost
looks like when you set a resolution that a monitor can't handle.

Again, this is random and sometimes it's fine.

I thought it was a video card problem, but elimindated that fact today.
 I reloaded the OS and updated the driver (the one from Dell).  The
video issue is also happening at the Dell logo screen on powerup, which
I believe elimindates the idea its a video driver issue.  And yes, it
also occurs on an external monitor, thus eliminating that its a LCD
issue or flex cable issue.  Right?

So I'm guessing it's a problem with the video card itself.  But why
would sometimes it be totatlly fine for hours or days?  I even tried
different power outlets to eliminate "noise" in the power lines.

Any ideas?  Things to try?


Re: Dell Inspiron 8100 Flickering video

On 7 Mar 2006 20:41:54 -0800, wrote:

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I've got the same problem but I have an Nvidia card.

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Yep, been there. Also, when I make a new screen selection it goes
black for a sec and then changes. In those "boxes" you can see the
screen below that on the monitor.
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Like you I thought it was the card, but I could not isolate a problem.
I'm beginning to wonder if it has soething to do with the memory
upgrade I made about six months ago,

Re: Dell Inspiron 8100 Flickering video

Did you rule out the video card?

Re: Dell Inspiron 8100 Flickering video

I have exactly the same problem with my inspiron 8100.  I had it
checked out by
a laptop repair technician, he advised it was the
videocard (on the motherboard)
and not worth fixing as it would cost
about A$800.

I have however found other
sites which may be of use to you see link

I suspect it can be fxed at home with some simple directions and a
video card.

It would be interesting to see if others have had any luck.

Re: Dell Inspiron 8100 Flickering video

I'm having the same issue with my 8100. I have the radeon 7500. I have
reinstalled the vedo driver to no avail. I removed the four keyboard
screws and
found that the video card removes easily after removing
its 3 screws and the
attached screen cable. I put everything back
together and the problem did not go
away. It wasn't caused by a loose
cable. I think if I can find a good deal on
the video card I'll buy a

Good Luck.

Re: Dell Inspiron 8100 Flickering video

Let me know if that works out for you.

Update:  My father noticed that if he doesnt turn off the laptop, but
rather puts it in suspend mode, its fine!

Once he shuts down and reboots though, the wavy/crazy lines come up.
He then needs to reboot several times until the wavy lines arent


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