Hello I want to mine on Ubuntu 17 with 2x r9 280x GPU, and on second pc 1x 270x GPU with also Ubuntu 17.
But I found out that fglrx (sorry if misspelled) aren't supported by new kernel/Ubuntu, and that there are new drivers - AMD GPU-PRO.... but they don't support it.

Is there any way to mine on those?
When I run Claymore miner it says modprobe fglrx not found (or something like that).

I want to mine ZCash (and maybe ETH/ETC with something later)

Thanks