The problem also may be related to the RAMDAC speed.  The RAMDAC is a clock
on the video card that controls the video timings regarding refresh rates
and resolutions.  If it's not fast enough, then you won't be able to display
certain resolution/color combinations.

Jose, your situation with the Stealth 3D 3000 is an example of that problem.
I have a 3D 2000 on the Linux machine at adsl12.bois.uswest.net that will
display 1200x1024x16 bits, but will not display 800x600x32 bits because the
RAMDAC (or dot clock, as Linux calls it) is not fast enough.  The data path
is probably an issue, too, because if a larger "chunk" of data can be
transferred, that would reduce the physical number of data transfers that
have to be made to provide a given resolution/color display.

Hopefully that makes some sense!

Drew Dunn
[log in to unmask]
http://adsl24.bois.uswest.net/drew/index.htm

> -----Original Message-----
> From: PCBUILD - Personal Computer Hardware discussion List
> [mailto:[log in to unmask]]On Behalf Of Jose E. Dominguez
> Sent: Thursday, September 24, 1998 8:42 AM
> To: [log in to unmask]
> Subject: Re: [PCBUILD] 32 bits color
>
>
> I was waiting for somebody else to give you the correct reason
> why you can't do
> this. It's not the drivers, and it's not the memory. It's got
> something to do
> with the width/path/bits in your card or something like that. I'm sure the
> correct response is on the way. If I'm totally off base here, then perhaps
> someone can tell me how to get 32 bit color on my Stealth 3D 3000
> with 4MB and
> the latest drivers <g>
>
> HTH
>
> Jose
>
>
>
> Roberto Safora wrote:
>
> > I have a client who wants to use his video card on 800 x 600,
> 32 bits color.
> > However he is using a CL5446 PCI, 2 MB. In win 95 the most I can see is
> > color 24 bits. I dont understand why we can get 32 bit color,
> nor even in
> > 640 x 480, if we have 2 MB.
> > [log in to unmask]
>
>                                   -----
>        **Need help with PCBUILD mailing list? Send an Email to:**
>         Bob Wright<[log in to unmask]> or Drew Dunn<[log in to unmask]>
>

                                  -----
       **Need help with PCBUILD mailing list? Send an Email to:**
        Bob Wright<[log in to unmask]> or Drew Dunn<[log in to unmask]>