[Paraview] Mesa/Offscreen Rendering

[Rick Angelini(CISD/CIV)]

Is there an issue with offscreen rendering and mesa in the CVS?   I'm 
building Paraview from a CVS download from Monday.     I'm configuring 
this to run on one of our clusters that does not have GL cards and I 
believe that I'm building against mesa.

When I fire up pvserver and connect back to the client, and load up some 
geometry (max'd out sphere, for instance), I get a number of X-windows 
errors on the server side, like it's trying to connect back to my display.

Process id: 3 >> ERROR: In 
/build/src/ParaView-08.25.08/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, 
line 1478
vtkXOpenGLRenderWindow (0xb62160): bad X server connection. 
DISPLAY=hpc-cluster-l7:10.0

The HPC node does not have GL cards and is not running an X server.   
Other than spewing X-errors, I am getting updated GL on the client - 
it's just not clear to me that it's actually doing distributed SW 
rendering on the server side.  

I have a build from the last production release (3.2.1) that behaves 
properly ... but I didn't do that build!   8-)