now I know things about this card.. but still its an issue for me , I am not using it in my rig currently as now my xubuntu is not able to see it but I am able to hash at 29Mh/s in windows with it.
Continued: https://bitcointalksearch.org/topic/m.26438909
Got down to business with the Asus Radeon RX580 OC8 GB finally. This is my first experience mining so i started with trying the stock bios and latest drivers. As testified in so many other places at the forum, they suck.
Followed the nice instructions given here by Matthev: https://bitcointalksearch.org/topic/guidetutorialxmrethhow-to-mod-bios-rx470570480580-vega-mining-1954245 to get to around 26 MH/s with Memory clock at 2000 MHz.
I then used the OverdirveNT tool to set Memory to 2150Mhz and its going at 30 to 30.5.
I'll leave it overnight and wait for those temperatures to stabilize.
Next comes underclocking and undervolting for which i need to read more. This is a fun thing to do. Hoping to setup the mining thing quickly and then get down to learning other stuff.
Sorry this is nothing on Linux, all on Windows. Will update with my experience later.