I'm roughly following this guide. The only big difference is I'm running Ubuntu 12.04 and I used the latest version of the ATI Drivers. (I have the same cards as the guide, 2x HD5830's)
When I try running the miner, I'm getting a seg fault. Here's the exact command I'm running:
./phoenix.py -u http://mineruser@miner0:password0@mine2.btcguild.com:8332 -k phatk DEVICE=0
I'm not sure if this will help but here is the output from DISPLAY=:0 sudo fglrxinfo
display: :0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Radeon HD 5800 Series
OpenGL version string: 4.2.11627 Compatibility Profile Context
display: :0 screen: 1
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Radeon HD 5800 Series
OpenGL version string: 4.2.11627 Compatibility Profile Context