[chimerax-users] Fwd: Unable to load --offscreen and --nogui options

[Greg Couch]

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

On 9/15/2020 1:30 PM, Sai Janani Ganesan wrote:
>
> 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 <http://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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