Cyberdwarf: Running Fedora Core 2. Got tv out working fine, cept for bright areas or areas with fast changes in contrast on video. They turn to pure white. Makes fire and windows look odd. Havn't gotten 3D accell to work yet. Tried the FAQ way on fedorafaq.org, but it complained that I wasn't using kernel 2.4.something or higher. I'm on 2.6.something. I've found another FAQ that includes a second patch for 2.6 kernels, but havn't taken the time to try it yet. The one I found doesn't look as complicated as the one posted above.
http://www.stanford.edu/~fenn/linux/radeon.shtml