Originally Posted by blekenbleu
Twinview emulates Xinerama to X apps.
Sorry, should have included a copy of the configuration:
NVIDIA-Linux-x86-1.0-8762-pkg1.run + NVIDIA_kernel-1.0-8762-U072006.diff.txt
Quadro FX 4500
dual Dell 3007WFP 2560x1600
You still might find it works with two cards using Xinerama rather than using TwinView. TwinView provides Xinerama hints to applications, which isn't quite the same as it emulating Xinerama. Certainly I've no problems using a 1600x4800 screen formed by bonding two cards with a total of four outputs using TwinView and Xinerama.