radeon driver ignores hsync and vsync settings.

[Skunk Worx]

using fc6 I see the radeon driver ignores the hsync and vsync settings 
for the X server. i can only limit hsync and vsync using the driver options.

i need to limit the dotclock somehow, so i set a skeletal xorg.conf file 
with the sync limits and update the driver section when my disk is 
booted in another machine.

when the driver changes back to radeon, i lose the driver options, and 
the monitor goes out of range.

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John