1. Graphic card pairs/triples that work perfectly

1.1. Modified X server not needed

Voodoo Graphics (glide) + Voodoo 3 (pci)(tdfx)

Voodoo Graphics (glide) + Riva TNT2 M64 (agp)(nvidia)

1.2. Modified X server needed

ATI Radeon 7000(AGP)+ Matrox Mystique (PCI)

AGP S3 Inc. 86c368[Trio 3D/2X]+Matrox MGA1064SG[Mystique] (PCI)

Nvidia cards

Riva TNT (PCI+PCI+AGP)

Riva TNT2 M64 (pci)(nvidia) + Riva TNT2 M64 (pci)(nvidia)

Riva TNT2 M64 (agp)(nvidia) + GeForce4MX(PCI)

Nvidia GeForce2MX(PCI) + GeForce2MX(PCI) + GeForce2MX(PCI) + GeForce2MX(PCI)

Works fine. DRI + Nvidia GLX works too.

Voodoo 3 (pci)(tdfx) + Riva TNT2 M64 (agp)(nvidia)

ATI Radeon 7500(AGP) + Nvidia TNT2(PCI)