[Paraview] Segfault with OpenGL2

[Ken Martin]

As I understand it VirtualGL should transparently forward OpenGL/GLX/etc
calls from the server to the client so that the client GPU is used. So my
guess would be to first try running PV on the client and see if it works.
If that seems to work fine then you know your client graphics supports PVs
use of OpenGL and the issue could be in VirtualGL or some PV/VirtualGL
interaction.

Ken



On Fri, Apr 8, 2016 at 3:20 AM, Harald Klimach <harald at klimachs.de> wrote:

> Hi there,
>
> I try to use the OpenGL2 Rendering backend in Paraview 5.0.1 on Archlinux
> with an nvidia graphics card.
> The setup involves running paraview with VirtualGL in a x2go session, and
> I always get the following error:
>
> ———
> ERROR: In
> /home/gk772/abs/paraview/src/ParaView-v5.0.1-source/VTK/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx,
> line 575
> vtkXOpenGLRenderWindow (0x42e8540): GLEW could not be initialized.
>
>
> ERROR: In
> /home/gk772/abs/paraview/src/ParaView-v5.0.1-source/VTK/Rendering/OpenGL2/vtkShaderProgram.cxx,
> line 399
> vtkShaderProgram (0x42d9dc0): Shader object was not initialized, cannot
> attach it.
>
>
> Segmentation fault (core dumped)
> ———
>
> I found the following thread referring to such an issue:
> http://vtk.1045678.n5.nabble.com/segfault-with-Opengl2-in-6-3-0-rc2-td5733742.html
> But it seems to be not exactly the problem I am facing.
> Another thing refers to EGL:
> https://www.mail-archive.com/paraview@paraview.org/msg25773.html, which
> again seems to be not really the
> same problem.
>
> This problem already arose in 5.0.0, but persists in 5.0.1. With the
> legacy rendering backend paraview continues to work in my setup.
>
> Can anybody give me some hints on how to investigate this further, or is
> there already a solution?
>
> Thanks a lot,
> Harald
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
518 371 3971

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