NVIDIA, ATI, psb config for F14

So, it seems less and less likely that this is going to be fixed by F14 GA: https://bugzilla.redhat.com/show_bug.cgi?id=623742 which means *-config-display won't work, which means enabling nvidia, fglrx and psb won't work as currently packaged. So here's a suggestion: we could replace the use of the *-config-display tools to write xorg.conf by simply writing static snippets to /etc/X11/xorg.conf.d in %post or from the services. For psb this should be trivial as it's an RandR 1.2 driver, I really only need to specify the driver name and a couple of options. I think it should also be feasible for nvidia / fglrx since they do use EDID detection these days - I don't think the stuff actually needed in an xorg.conf snippet to enable these drivers has to vary between systems, we should be able to just make it a simple snippet. What does everyone think of this approach, does it seem sensible? It'd be nice to push this out to be ready for GA next week. -- adamw