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Ubuntu 16.04 dual RX 570 problem with loading system

Question asked by szogun1987 on Nov 19, 2017
Latest reply on Mar 6, 2018 by szogun1987

I have set wit dual RX 570 with ubuntu 16.04 installed. If I detach any of the graphic cards everything is running fine. But if both of them are attached black screen appears just after selecting OS. I have 17.40 AMD drivers version. Interesting fact is that I'm not able to install Ubuntu with both cards attached either. Depending on version I receive kernel panic or never ending fast scrolling console output. Windows installer starts properly in this set. I can install unreleased version of drivers if it is necessary (I'm able to rebuild OS config in 40 minutes so I can risk).