Quote from: Tom17 on June 01, 2017, 01:32:49 AM

I'm having some trouble here. I have a rig that I set up back in 2013/2014 and used to mine it.

Back then, it was like so:
Gigabyte 1155 mobo with cheap Celeron and 4GB ram.
Booting Ubuntu 12.04 on a USB drive (Surprisingly this worked well)
Some version of the FGLRX drivers
Multiple 7950 cards

So I dusted it off recently to mine ZEC, installed Claymore on it and it worked straight away, but only saw one GPU at a time. Linux could see and use multiple GPU.

I decided it was time to just rebuild the OS. So I got a new USB stick, installed Ubuntu 16.04 server following this guide: https://blockoperations.com/build-6-gpu-zcash-headless-mining-rig-ubuntu-16-04-using-claymore/
It's using the latest AMDGPU-PRO driver (17.10, the link did not show the 16.50 drivers any more).

Right now, I am having zero luck. I have a single Sapphire 7950 in there, and the hash rate always shows as 0. No overclocking, no PCIx risers, everything stock.

I tried using the older drivers (16.50) as I eventually found them, but still no luck. In fact it was worse as it now saw the cards as Hainan instead of "Tahiti".

I have since read that maybe I should be using Ubuntu 14.04. But I am not sure where to head right now. I have wasted a whole day on this so far.

Is there a currently recommended way to get this all working in Linux with a 7950 card?

My rig is old too. it's from 2014. 3 cards r9 280x and one r9 270.
I'M using ubuntu server 14.04 as base os. and for installing drivers: I used this guide as reference : http://spacience.blogspot.com.tr/2015/11/gpu-mining-in-ethereum-1404-from-scratch.html
and after that installed atitweak to easy set the clocks from a bash script.