You should install both, at the same time. In fact the driver is in the -radeon .deb, so only that is strictly needed, but keep both in sync to avoid any trouble. Both .deb packages come from the -ati source package, so look there.
No, you should not use any xorg.conf at all.
You should install both, at the same time. In fact the driver is in the -radeon .deb, so only that is strictly needed, but keep both in sync to avoid any trouble. Both .deb packages come from the -ati source package, so look there.
No, you should not use any xorg.conf at all.