https://bugs.freedesktop.org/show_bug.cgi?id=91880
--- Comment #203 from iburnth3playb00k kar_harris@hotmail.com --- (In reply to chris from comment #188)
I suffered pretty much all of the issue listed in this thread for many weeks since upgrading to 3 1440p monitors.
I have an Club 3D R9 390 Royal Queen.
Comment #182 best describes the problem I faced and what I had to do to work around it.
I am happy to announce that kernel 4.16.7 has solved this issue for me.
My system has no more issues booting. KDE is stable. No flickering at all. Even when forcing power_dpm_force_performance_level to 'low'.
I'm running Gentoo with: mesa-18.1.0 libdrm-2.4.91 xf86-video-amdgpu-18.0.1 xorg-drivers-1.19
kernel params include: radeon.cik_support=0 amdgpu.cik_support=1 amdgpu.modeset=1 amdgpu.dc=1 amdgpu.dpm=1
If anyone needs more info please ask.
Im kinda new to linux and i have this problem. Can you create a step by step guide to help me fix the problem?