ATI 290x on Ubuntu 14.04
I've been trying to get Ubuntu 14.04 to see the Radeo 290x cards for a while with no success.

This is the message I'm getting

aticonfig: No supported adapters detected

I tried first installing ATI Catalyst (

I then tried this guideline

But with no success.

Did anyone run into this problem? What do you guys recommend?
Try to read wiki
When you download oclHashcat, look a bit lower, you will see what driver is needed (not recommended but majority).
Thank you very much!
I re-build the system using the same software listed in the Wiki and using the same driver. I was able to see only two out the four GPUs I have installed on the system.

Any idea what may be causing this?

amdconfig --initial -f --adapter=all


Also, keep in mind that you need X window and autologin enabled. It was my issue on my first time, I wasted 2 days to figure it out. If you don't start X and log on it, no way.

Good luck