Bug#832560: xserver-xorg-core: performance is very bad since using built-in modesetting 4th gen GMA on ivy bridge

[Julien Cristau <jcristau@debian.org>]

On Tue, Jul 26, 2016 at 23:21:37 +0200, Martin Dosch wrote:

> There is also some weird output of VMWare in glxinfo:
> 
> > glxinfo | grep OpenGL
> > OpenGL vendor string: VMware, Inc.
> > OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)
> > OpenGL core profile version string: 3.3 (Core Profile) Mesa 12.0.1
> > OpenGL core profile shading language version string: 3.30
> > OpenGL core profile context flags: (none)
> > OpenGL core profile profile mask: core profile
> > OpenGL core profile extensions:
> > OpenGL version string: 3.0 Mesa 12.0.1
> > OpenGL shading language version string: 1.30
> > OpenGL context flags: (none)
> > OpenGL extensions:
> > OpenGL ES profile version string: OpenGL ES 3.0 Mesa 12.0.1
> > OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
> > OpenGL ES profile extensions:
> 
> Compared to the old output before:
> 
>         1,2c1,2
>         < OpenGL vendor string: Intel Open Source Technology Center
>         < OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile
>         ---
>         > OpenGL vendor string: VMware, Inc.
>         > OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)
> 
> Feel free to ask for mor information needed to investigate in this issue.
> 
Please show the output of dpkg -l '*mesa*', you seem to have some bits
from experimental, but possibly not all that's needed.  And please
attach your X log (after removing xorg.conf again), which should be in
~/.local/share/xorg.

Cheers,
Julien