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[Launchpad Bug Tracker <1379630@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity-greeter (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1379630

Title:
  libgl1-mesa-dri in Ubuntu 14.04 cannot provide 3D acceleration in
  VirtualBox

Status in unity-greeter package in Ubuntu:
  Confirmed

Bug description:
  I tried both release and proposed versions of libgl1-mesa-dri
  (10.1.3-0ubuntu0.1 and 10.1.3-0ubuntu0.2). They both produce the same
  errors as shown below:

  $ LIBGL_DEBUG=verbose glxinfo
  name of display: :0
  libGL: screen 0 does not appear to be DRI3 capable
  libGL: screen 0 does not appear to be DRI2 capable
  libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/swrast_dri.so
  libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
  libGL: driver does not expose __driDriverGetExtensions_swrast(): /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so: undefined symbol: __driDriverGetExtensions_swrast

  $ /usr/lib/nux/unity_support_test -p 
  OpenGL vendor string:   VMware, Inc.
  OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits)
  OpenGL version string:  2.1 Mesa 10.1.3

  Not software rendered:    no
  Not blacklisted:          yes
  GLX fbconfig:             yes
  GLX texture from pixmap:  yes
  GL npot or rect textures: yes
  GL vertex program:        yes
  GL fragment program:      yes
  GL vertex buffer object:  yes
  GL framebuffer object:    yes
  GL version is 1.4+:       yes

  Unity 3D supported:       no

  The workaround, as referenced in the following link, is to downgrade libgl1-mesa-dri. I tried downgrading to 10.1.0-4ubuntu5 but it also didn't work.
  https://bbs.archlinux.org/viewtopic.php?id=180451

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