Red Hat Bugzilla – Bug 113944
AMD 8151 AGP Missing for Fedora Core 1 for x86_64
Last modified: 2015-01-04 17:04:24 EST
Description of problem:
AGP support is compiled into the kernel for Fedora Core 1 Test 1 for
x86_64. Apparently, AMD 8151 support was not included. dmesg output
includes "agpgart: no supported devices found.". SuSE 9.0 for AMD64
includes AMD 8151 support and correctly identifies the AGP bus during
Steps to Reproduce:
2. examine dmesg output
No AGP support
Tyan Thunder K8W board, Nvidia GeForce 4 4600. AMD web site claims
8151 support has been availabe in the kernel for some time now.
Probably just needs to be compiled in.
support is there, but due to a bug, it doesn't pick up the agp bridge
on the tyan board (its in a different place to other amd64 boards).
The fix for this is in the current -testing kernel (2163).
The Tyan board specifically has the AGP bridge tied to CPU1 instead of
CPU0. While this should be a performance improvement in the future,
it will take a while for everyone to understand the implications of
that choice. Specifically, while the testing kernel will identify the
AGPGart, it is my understanding that the nVidia drivers still will not
function in this configuration. They are working on the problem.