questions re: Radeon 8500

[R Shapiro]

I'm on the verge of buying a Radeon 8500 to replace the Rage128 card in 
my G4 Sawtooth.  This is my home machine, which mostly runs OSX -- I 
need the Radeon to take advantage of Quartz Extreme.   But it also has 
YDL2.3 installed and I definitely find it useful to run linux from time 
to time, particularly for telecommuting.

Questions:

1.  Can the default YDL2.3 kernel talk to an 8500 at all?

2.  If so, what kernel video= argument would I want?  I'm driving an 
Apple lcd17 through a DVIator, which is what I'll continue to do with 
the Radeon (the Sawtooth doesn't support adc). Right now I must specify 
the following to get any video at all:

   video=aty128fb:1280x1024-8@60

Can I simply substitute 'radeonfb' or something similar for 'aty128fb'?  
If I already have a video= argument in yaboot.conf, can I override it by 
passing a different value directly to yaboot?


3.  If I can get it to boot and get console video with the appropriate 
video= arg, is there an accelerated X driver I can use in place of r128?

Thanks -



--
rshapiro@bbn.com