@battleaxe: Your GPU is not recognized by the OpenCL implementation. I guess that the easiest way to fix the driver is to do a clean install of Ubuntu and after that only install the Catalyst driver 13.12 WITHOUT the APP SDK. To install the driver you have to download the driver from the AMD website and create a package for your Ubuntu version. After that install the packet using apt-get.

Your fix not work. Same truble with no connected display to videocard (likely X-Server not start). Rig controled via RDP. If connect display on start-> no this errors. Without display ati --odg not work, but cgminer work (with ADL and temp control).