Currently, --offscreen only works on Linux.  Can you tell me more about your Linux installation?  It looks like you installed a Fedora 32 rpm, but we don't distribute one.  The first step would be to try an official build.  The CentOS 8 rpm should work for Fedora 32.   Installing from the rpm has the advantage that it will get all of the dependencies installed as well.

    -- Greg

Hello All,

I am unable to save images from the command line, I get an OpenGL error. I get openGL errors on both Mac and Linux. Any suggestions?

ChimeraX --offscreen --nogui test.cxc 

Traceback (most recent call last):

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/runpy.py", line 193, in _run_module_as_main

    "__main__", mod_spec)

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/runpy.py", line 85, in _run_code

    exec(code, run_globals)

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/ChimeraX_main.py", line 895, in <module>

    exit_code = init(sys.argv)

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/ChimeraX_main.py", line 453, in init

    sess = session.Session(app_name, debug=opts.debug, silent=opts.silent)

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/chimerax/core/session.py", line 441, in __init__

    self.logger = logger.Logger(self)

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/chimerax/core/session.py", line 501, in __setattr__

    if not name.startswith('_') and self.snapshot_methods(value, base_type=StateManager) is not None:

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/chimerax/core/session.py", line 535, in snapshot_methods

    from chimerax import graphics as gr

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/chimerax/graphics/__init__.py", line 34, in <module>

    from .opengl import Texture, Lighting, Material

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/chimerax/graphics/opengl.py", line 61, in <module>

    from OpenGL import GL

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/GL/__init__.py", line 4, in <module>

    from OpenGL.GL.VERSION.GL_1_1 import *

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/GL/VERSION/GL_1_1.py", line 14, in <module>

    from OpenGL.raw.GL.VERSION.GL_1_1 import *

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/raw/GL/VERSION/GL_1_1.py", line 7, in <module>

    from OpenGL.raw.GL import _errors

  File "/opt/chimerax-1.0-1.fc32/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/raw/GL/_errors.py", line 4, in <module>

    _error_checker = _ErrorChecker( _p, _p.GL.glGetError )

AttributeError: 'NoneType' object has no attribute 'glGetError'-- 

Thanks,
Sai

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