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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91880#c204">Comment # 204</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91880">bug 91880</a>
from <span class="vcard"><a class="email" href="mailto:tkdestroyer2+bugs-freedesktop@gmail.com" title="tkdestroyer2+bugs-freedesktop@gmail.com">tkdestroyer2+bugs-freedesktop@gmail.com</a>
</span></b>
<pre>(In reply to iburnth3playb00k from <a href="show_bug.cgi?id=91880#c203">comment #203</a>)
<span class="quote">> (In reply to chris from <a href="show_bug.cgi?id=91880#c188">comment #188</a>)
> > 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.
> >
> > <a href="show_bug.cgi?id=91880#c182">Comment #182</a> 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?</span >
You need to:
a) Upgrade the kernel to a newer version.
b) Add boot parameters
There are guides online for these. Search for one in your distribution (e.g.
Gentoo, Arch, Ubuntu).
I myself still get kernel panics on latest (4.17.12) and freezes and whatnot.
Older versions with dpm=0 are my only success.</pre>
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