laptop screen noise terminology?

  • Thread starter Thread starter JB
  • Start date Start date
J

JB

I have a toshiba P30 mobile desktop. It's heavy but it serves its purpose.
Occasionally, when I restart it, the screen will partially echo information
horizontal of the true pixels in the form of dos-cursor sized underscore
shapes. - certainly, the symptoms are digital in fashion (uniform noise
particle shapes) and not analog.

So A nice clean line like this
|
|
|

will turn out looking like the following in a noisy animated fashion...

| - _- -
| -- _ -
| - -

with the intended pixels repeated.

So that I may research this problem, I'd like to know what it might be
called? Even better, if you know what causes this....

It would seem that the video memory is receiving a pixel map, but some logic
in the video card is randomizing the output - that the problem is after the
video memory, but before the monitor output. Perhaps an AD converter is
picking up some noise somewhere that modifies the pixel output.. *shrug*.


Thanks in advance.

-JB
 
try defragmenting your hard drive. then check to see if there are any
problems with you video card because it sounds like there is a problem
somewhere on the video chip or card. I'll get back to you on this one.
 
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