dx-packages team mailing list archive

[Sergio Gelato <Sergio.Gelato@xxxxxxxxxxx>]

tag -patch
 done

* Sergio Gelato [2014-10-07 06:27:49 +0000]:
> I've upgraded the OS on the affected computer to trusty and found that
> the problem is still present in trusty's version of nux. Same symptoms,
> and my patch still applies.

I'll take that back: the patch still applies but is no longer useful since
it no longer results in compiz-2d being invoked. compiz starts anyway, the
LIBGL_ALWAYS_SOFTWARE setting is not applicable because I'm using nVidia's
proprietary OpenGL libraries rather than Mesa, and so I get a crash. That
means one needs to fix the actual cause of the crash.

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https://bugs.launchpad.net/bugs/1103961

Title:
  nux::IOpenGLShaderProgram::Begin crashes on nVidia 10de:00fd

Status in “nux” package in Ubuntu:
  New

Bug description:
  After upgrading to precise and activating nvidia-173 (173.14.35) on a
  machine with the following graphics card:

  01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV37GL
  [Quadro PCI-E Series] [10de:00fd] (rev a2)

  /usr/bin/compiz started to crash with the exact same symptoms as in
  bug #768178. (I'm filing a new bug since that one is marked as a
  duplicate of a quite different bug that is itself marked as invalid.)
  This isn't too surprising since the graphics card is a close relative
  of the GeForce FX series, various flavours of which are already
  blacklisted in nux.

  Forcing Unity 2D works around the problem, so I've applied the
  attached patch on top of nux 2.14.1-0ubuntu1. Maybe one could set
  _use_glsl_shaders = false in NuxGraphics/GraphicsEngine.cpp instead
  but I don't have the time to test this conjecture.
  glGetString(GL_RENDERER) returns "Quadro PCI-E Series/PCI/SSE2" for
  this card and driver.

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