[ 14.674] (EE) FATAL: RadeonHD presently does not work with kernel modesetting (KMS).
Please disable KMS in your kernel.
[ 14.674] (II) UnloadModule: "radeonhd"
[ 14.674] (EE) Screen(s) found, but none have a usable configuration.
[ 14.674]
Fatal server error:
[ 14.675] no screens found
[ 14.675]
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 14.675] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 14.675]
Was kann ich tun?