Index: [thread] [date] [subject] [author]
  From: =?iso-8859-1?Q?Niklas_H=F6glund?= <niklas@canit.se>
  To  : ggi-develop@eskimo.com
  Date: Wed, 4 Aug 1999 21:13:03 +0200

Re: ANNOUNCEMENT: New ViRGE driver

On Tue, Aug 03, 1999 at 09:22:43PM +0200, Martin Lexa wrote:
> Niklas Höglund wrote:
> 
> > I tested on a fresh update from CVS. I've updated again now, though,
> > and it seems to work well except for one thing. I've seen this
> > behaviour earlier on an old Tseng card in DOS. This bug only occurs on
> > modes "higher" (bandwidth-wise) than 640x480x8, and the effect is more
> > severe the higher the mode. It seems that drawing operations somehow
> > delay the card in "starting a new line". When the screen is not drawn
> > on nothing happens, but when it is drawn on some lines get shifted to
> > the right for one vertical refresh. The next vertical refresh other
> > lines get shifted, and when the drawing is finnished the display
> > stabilizes.

> > I've looked some more at it and it doesn't start at the left edge of
> > the screen, but about an inch to the right of the left edge. Exactly
> > how it looks seem to depend on what is drawn.

>   Yes, I know what do you mean.

Do you know what causes this effect? It'd be interesting to know.

-- 
						Niklas

Index: [thread] [date] [subject] [author]