Xorg 6.8.2 does not have PCI Domain support and this will break when using a 2.6 kernel on a Sparc, and quite possible other server systems that have multiple PCI domains. The existing code only works if the video card is in PCI domain 0, and domains outside domain 0 are not scanned.
Created attachment 75483 [details, diff] Here's the fix! This patch is largely the work of others, just cleaned up, bugs fixed, and tested. This has been sent upstream to freedesktop.org's bugzilla into bug #2368, but I would prefer if gentoo could include it as one of Xorg's many patches since it may take some time before it goes official. If you have a 2.6 kernel and multiple PCI domains, you likely need this patch to run Xorg.
i'm pretty sure we already have a patch in place which hacks around the issue so that xorg is at least usuable for the most part
The existing work-around only works for domain 0. I cannot get a video card into domain 0 on my system, and I'm pretty sure there are likely other people with the same problem. A 14K patch and no one has to move around video cards trying to get into domain 0 again - it will just work.
We don't add patches to any X packages without them being accepted upstream first. I'll mark this bug upstream since that's where this has to be pushed first. 6.8.2 is purely in maintenance mode right now - we won't add the patch there regardless. It'll go into 7.0 (modular) once upstream accepts it.
