| Re: laptop screen noise terminology?
I'd need to see a photo
JB wrote:
> 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
>
>
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