[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 #159 from Jon Doane <jrdoane at gmail.com> ---
Is there going to be any work on this? I've literally been doing:
"echo  high > /sys/class/device/drm/card0/power_dpm_force_performance_level"
every day to boot my machine for over a year hoping that this might get fixed
but, I've seen practically no progress made on this bug. After attempting to
use kernel 4.13, it becomes unstable and crashes faster than I can duck out
into a TTY so, it's almost like the problem is getting worse as time goes on.
This is literally a crippling bug and I find it astonishing that something,
like locking VRAM clocks and making 500Mhz the minimum core clock for all 390s
hasn't been implemented as a stopgap measure to at least get the thing stable.
For crying out loud, this bug has been open for 2 years now and has been
reproduced by several different people, or do we have to wait another 2 years
before we're told that it won't be fixed?

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