Hi all,

There seems to be an issue with XQuartz 2.7.9 on OS X when trying to render an OpenGL window (e.g. Coot, PyMOL, Phenix GLViewer) over SSH using X forwarding (i.e. ssh -Y). You will get an error that looks like

X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  150 (GLX)
  Minor opcode of failed request:  3 (X_GLXCreateContext)

It seems like indirect rendering of a GLX context does not work properly on 2.7.9. Downgrading to XQuartz 2.7.8 works for me.

--
Billy K. Poon
Research Scientist, Molecular Biophysics and Integrated Bioimaging
Lawrence Berkeley National Laboratory
1 Cyclotron Road, M/S 33R0345
Berkeley, CA 94720
Tel: (510) 486-5709
Fax: (510) 486-5909