Joao, Make sure your graphics driver is up to date. Also make sure that 'glxgears' runs properly on your system. That exercises the OpenGL X driver.
Nick On Wed, 2008-08-20 at 16:37 +0100, Joao Pereira wrote: > Hello, > > I'm having an issue with tksurfer - whenever I try to load a surface, the > display only shows scattered points (with the vaguely recognizable shape of > the intended surface). I've noticed the following error that may be related > to this: > > libGL error: open DRM failed (Operation not permitted) > libGL error: reverting to indirect rendering > > I'm using the freesurfer-Linux-centos4_x86_64-stable-pub-v3.0.2 version. Any > ideas as to what is going on? > > Thank you very much for your help. > > Best, > > Joao Pereira > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
