Messed up Apple (clone) video

From: Doug Spence <ds_spenc_at_alcor.concordia.ca>
Date: Sun Apr 4 05:49:32 1999

On Mon, 29 Mar 1999, Tony Duell wrote:

> > Usually when it's cold, the display is a complete mess. As it warms up,
> > the image becomes clear but in four parts. Each quarter (corner) of the
> > screen is a mini-image of what should be displayed on the whole screen.
> > Out of each group of four pixels of what would be displayed normally, each
> > will be displayed in a different quadrant of the screen.
>
> Is the screen image perfectly locked in this 'mode'? And what happens in
> the text display mode - do individual pixels from the characters get
> separated, or what?

The screen image does stabilize in the 'four quadrants' mode for a little
while. And yes, the pixels of characters in the text mode do get
separated. There's no difference between graphics and text modes as far
as that's concerned.

> My first thought is that it's a video timing or clock problem. It
> doesn't sound like anything close to the video output.

I'll try the freeze spray thing that you and someone else have suggested.

> -tony

-- 
Doug Spence
ds_spenc_at_alcor.concordia.ca
http://alcor.concordia.ca/~ds_spenc/
Received on Sun Apr 04 1999 - 05:49:32 BST

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