[Mesa-dev] [Bug 97260] R9 290 low performance in Linux 4.7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97260

Xavier Sellier <xsellier at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|WONTFIX                     |---
             Status|RESOLVED                    |REOPENED

--- Comment #52 from Xavier Sellier <xsellier at gmail.com> ---
Hey,

I have 2 computers with the very same hardware (AMD FX 6300 with a AMD R9 290).
We are experiencing the very same issue.

We're both running Debian sid.

uname -a
Linux binogure 4.6.0-1-amd64 #1 SMP Debian 4.6.4-1 (2016-07-18) x86_64
GNU/Linux

glxinfo | grep -i opengl
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD HAWAII (DRM 2.43.0 / 4.6.0-1-amd64,
LLVM 3.8.1)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 12.0.3
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 12.0.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 12.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

lspci | grep -i vga
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Hawaii PRO [Radeon R9 290]

Up to this kernel (4.6.1), everything runs fine (around 100 fps on most of
games). Each time I upgrade the kernel to 4.7.0-1 or 4.8.0-rc5, fps are
dropping to 25~30.
To compare fps, I use unigine valley benchmark, I will attach result to this
bug.

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