Re: Video Rules?
On Sun, Aug 22, 1999 at 06:02:24AM -0600, Karl F. Larsen wrote:
> Are there any rule of thumb on how much ram the video card must
> have to achieve a given resolution? I have a 1 meg card now and get 8 bit
> 16 color when using a 1024x480 screen.
(bpp / 8) * hr * vr <= ram
with: bpp -- colour depth
hr -- horizontal resolution
vr -- vertical resolution
ram -- video card memory
I think X needs a little additional memory for fonts and pixmaps.
> But windows 98 seems to get far better resolution with this card.
> I wonder how?
The theoretical maximum at 16 bit would be something like 836x627,
1180x885 at 8 bit, provided you want a 4x3 display ratio. See the
XFree86-VideoTimings-HOWTO for additional information.
HTH, Robert
--
Robert Vollmert rvollmert@gmx.net
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