Litecoin mining, AMD Overdrive
So for the rest of you I hope this is useful. I disabled the onboard video, and plugged into card.
Re-ran
sudo aticonfig --adapter=all --initial -f
rebooted, all devices were enabled.
By default cgminer looks for libudev.so.0, and will not run until it's happy so I set a link up to the newest version.
cd /lib/x86_64-linux-gnu
sudo ln -s libudev.so.1.2.2 libudev.so.0
xubuntu 13.04 = happy