[Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91880

--- Comment #48 from Julian <jsbansen at gmail.com> ---
I have the same issue. R9 390, running DPM=1 will end up in an eventual freeze.
Using DPM=0 works fine but is obviously suboptimal.

I could provide another xorg log/vbios/demsg but they seem to be quite similar
to the thread starter's.

Two things to add:

* I've tried with Ubuntu's default Mesa version (which is 11.0.8 I think) and
the newest (11.1) and the newer release seems to cause the freeze much faster.
On 11.0.8 I'd be able to use the system for hours until it froze. 11.1 never
lasted for more than 20 minutes.

* A quick way to force the freeze to happen is to use google maps. Half a
minute of scrolling around and zooming in/out is enough to make it happen.

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