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Date:      18 Apr 2002 11:43:19 -0600
From:      Eric Anholt <eanholt@gladstone.uoregon.edu>
To:        Gavin Kenny <gavinkenny@yahoo.co.uk>
Cc:        Joe O <joeo@cracktown.com>, questions@FreeBSD.ORG
Subject:   Re: DRI - Direct Rendering
Message-ID:  <1019151799.429.14.camel@anholt.dyndns.org>
In-Reply-To: <20020418153754.30200.qmail@web20005.mail.yahoo.com>
References:  <20020418153754.30200.qmail@web20005.mail.yahoo.com>

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On Thu, 2002-04-18 at 09:37, Gavin Kenny wrote:
>  --- Joe O <joeo@cracktown.com> wrote: > You may have
> mentioned this earlier in the thread
> > but,
> > How much memory is on the card, and what is the max
> > resolution are you
> > running it in (eg what is the max resolution that
> > ctrl-atl-+ gets you)?
> > 
> > 
> 
> The spec sheet says 8MB, although the system reports
> it as 64MB??
> 
> Resolution is 1024x768
> 
> I guess the lack of memory could be the reason for
> dropping the DRI at 24bpp.
> 
> Gavin
The 64MB is the size of the AGP aperture.  AGP is used for sending
commands to the card, while textures and framebuffers (front, back,
depth, each of the size of the screen) are in card memory.

Assuming I can do math (not a given):
1024 x 768 x 4 x 3 / 1024^2 = 9MB for the buffers at 32bpp, leaving -1MB
for textures :-)  I think we've found the problem.


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