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[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

Slightly better:

$ sudo glxinfo | grep OpenGL
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop 
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.6.3
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:
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL version string: 3.0 Mesa 10.6.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
Failed to open BO for returned DRI2 buffer (100x100, dri2 fake front buffer, named -1).
This is likely a bug in the X Server that will lead to a crash soon.
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.6.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

-- 
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Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1496300

Title:
  GLX/EGL X11 clients of Xmir get software rendered (LLVMpipe)

Status in xorg-server package in Ubuntu:
  Triaged

Bug description:
  GLX clients of Xmir get software rendered (LLVMpipe). No idea why...

  $ glxinfo | grep OpenGL
  OpenGL vendor string: VMware, Inc.
  OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)
  OpenGL version string: 3.0 Mesa 10.6.3
  OpenGL shading language version string: 1.30
  OpenGL context flags: (none)
  OpenGL extensions:

  $ glmark2
  ** GLX does not support GLX_EXT_swap_control or GLX_MESA_swap_control!
  ** Failed to set swap interval. Results may be bounded above by refresh rate.
  =======================================================
      glmark2 2014.03+git20150611.fa71af2d
  =======================================================
      OpenGL Information
      GL_VENDOR:     VMware, Inc.
      GL_RENDERER:   Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)
      GL_VERSION:    3.0 Mesa 10.6.3
  =======================================================

  Still, LLVMpipe rocks and things are generally smooth.

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