All, Was half way through writing an email and then I solved the problem - so sharing anyway just in case it saves someone else some pain ;)
We have MATLAB r2014a running fine but I get the following when running r2014b the same way and using an opengl command (e.g. "patch")... vglrun matlab MATLAB is selecting SOFTWARE OPENGL rendering. [VGL] WARNING: The OpenGL rendering context obtained on X display [VGL] :0 is indirect, which may cause performance to suffer. [VGL] If :0 is a local X display, then the framebuffer device [VGL] permissions may be set incorrectly. [VGL] ERROR: glXCreateContextAttribsARB symbol not loaded The problem is that MATLAB r2014b tries to detect the GPU and gets confused by the multiple display. The solution was found my reading the matlab start up script and finding the -nosoftwareopengl option. So the following works :) vglrun matlab -nosoftwareopengl Cheers, Paul -- Dr Paul McIntosh Senior HPC Consultant, Technical Lead, Multi-modal Australian ScienceS Imaging and Visualisation Environment (www.massive.org.au) Monash University, Ph: 9902 0439 Mob: 0434 524935 ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users