Check out the post-halloween document: http://www.linux.org.uk/~davej/docs/post-halloween-2.6.txt
The section labeled Framebuffer layer will probably answer your questions.
In short, the new parameter is likely: video=radeon:[EMAIL PROTECTED]
I'm running 2.6.0-test8 and using 'vga=791' without any problems.
-- Andrew Gaffney
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