I just got up and running on Lubuntu 14.04 using the AMD 14.4 drivers today. Running a single powercolor reference R9 290x and getting 3.5Mh/s at I 19 --no other options set.
This sgminer software needs work...
The Accepted, Rejected and Hardware counters at the top of the screen never increment (A: R: HW:).
The pool connection never indicates what the miner is actually connected to ie (Connected to Pool 0)
With all the fuss over stolen hashrate, using this algorithm, this piece of software needs some work.
I'd love to see a ckolivas version of an X11 miner.
Ckolivas, I will tell you, is a douche, a very big one. He no longer supports OpenCL(since like 3.7.2) and will refuse to add it, he despises anything other than SHA256 and this is further reinforced by the fact he removed scrypt.
Sorry if I sound harsh, but I know him from like when he first wrote cgminer and...his character is just awful, kano is his protege.