[Paraview] Segfault with OpenGL2

[Harald Klimach]

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