Ah, I see now.  Do you know if installing the Nvidia OpenGL stuff would
have any adverse affect on software OpenGL rendering on the other
cards?  At least that might be acceptable until I can figure out how to
get around that limitation.  I suppose I could also try to figure out a
good setup for swapping the libraries before I start X to decide which
card(s) I want to have 3D hardware capabilities for that session.  Maybe
I should do some research and see if anyone else is trying to work out
anything for this.  If not, maybe I can see about writing some sort of
wrapper gl library than can call whichever GL library based on which
module calls it.  Thanks for the info.

"Sprague, IT3" wrote:
> 
> nVidia has their own OpenGL implementation, which isn't compatible with DRI
> (known as NV-GLX). So, you could have 3D on the GeForce2 MX (with the
> closed-source driver, the open nv driver is 2D-only), but that would nuke
> DRI on the G450 and the Radeon. The flipside is that you could have DRI on
> the MGA and ATi, but not the GeForce2.
> 
> The following chipsets support DRI:
> 
> ATi Radeon 7500
> ATi Radeon DDR
> ATi Radeon SDR
> ATi Radeon VE
> ATi Rage 128 Pro
> ATi Rage 128
> 3dfx Voodoo5
> 3dfx Voodoo4
> 3dfx Voodoo3
> 3dfx Voodoo Banshee
> Matrox G450
> Matrox G400
> Matrox G200
> 3DLabs GMX 2000
> Intel i810 (i815/i830 also, IIRC)
> 
> The TNT, TNT2, GeForce, GeForce2 and GeForce3 series support nVidia's
> NV-GLX, which overwrites the DRI OpenGL libraries (libgl.so, etc)
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