|Message: G4OpenGLXViewer problem on Ubuntu 10 LTS||Not Logged In (login)|
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We recently updated our Linux machine to Ubuntu 10 LTS. Compinlation of Geant4.9.1.p01 + CLHEP188.8.131.52 (version previously installed) goes well (though with few tricks), as well as more recent Geant4.9.3.p02 + CLHEP184.108.40.206. In both cases ./Configure -build is used and OpenGLX, OpenGLXM, DAWN, RayTracer , VRML are choosen. I can compile the examples of both installations but while executing (e.g. N03 or N07) I get same error:
G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals... Segmentation fault
Sometimes also core file is produced. Doing '$gdb exampleN07 core' yields at the end:
... Core was generated by `./exampleN07'. Program terminated with signal 11, Segmentation fault. #0 0x00007ffca56fdde4 in G4VisManager::CreateViewer(G4String, G4String) () from /kalinka/software/cern/geant4/geant4.9.2.p01/lib/Linux-g++/libG4vis_management.so
To access the Linux machine either Xming or NXclient is used, glxgears runs well for both remote sessions.
Best regards, Valentin
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