[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 #140 from Jan Ziak <0xe2.0x9a.0x9b at gmail.com> ---
(In reply to Chris Waters from comment #139)
> Tried Manjaro and an install of Ubuntu MATE with a ppa for mesa-git drivers.
> No pp_dpm_sclk in either.
> 
> Am I missing something?

Manjaro (both stable and development) is running on Linux kernel 4.4.

Ubuntu MATE 16.10 is running on Linux kernel 4.8.0, but it has
CONFIG_DRM_AMDGPU_CIK disabled in kernel configuration and is loading radeon.ko
instead of amdgpu.ko.

The following 3 commands can be used to check whether amdgpu+CIK are enabled:

$ uname -r
4.8.0 (or later version)

$ lsmod | grep amdgpu
amdgpu

$ zgrep CIK /proc/config.gz
CONFIG_DRM_AMDGPU_CIK=y

An alternative form of the last command:

$ grep CIK /boot/config-$(uname -r)
CONFIG_DRM_AMDGPU_CIK=y

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