Hi
I don't have a real solution, only a few suggestions (as i
don't have a laptop, or radeon 7500)
Most people that got an working X on the 8100 did
have redhat 7.3 installed (worked right away) or had
the nvidia chipset aboard instead of the radeon 7500.
There seems to be a difference between the XFree86
package RH uses and the one provided by MDK
So during install, skipping the X setup and afterwards
upgrading the XFree86-4.2.0-10mdk, might help
rpmfind.net says there is a ....4.2.0-
16mdk.rpm
read also;
http://sdb.suselinux.hu/en/sdb/html/..._chipsets.html
and maybe the noapic solution on that page is related to
your problem
good luck