I've got a AMD Athlon 1800 @ 2000, VIA Apollo KT400 chipset, and a radeon 9700 non-pro card on slackware 9.1 2.6.0. I applied both patches, and followed the kernel configuration and it worked like a charm
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: RADEON 9700 x86/MMX/3DNow!/SSE
OpenGL version string: 1.3 (X4.3.0-3.7.0)
16005 frames in 5.0 seconds = 3201.000 FPS
16912 frames in 5.0 seconds = 3382.400 FPS
17072 frames in 5.0 seconds = 3414.400 FPS
16965 frames in 5.0 seconds = 3393.000 FPS
before I found this post, I compiled my kernel over 10 times that was worth over 6-7 hours straight, and tried random things. all I can say is, GREAT F****** JOB!!