The following bug report has been submitted:
Platform: macOS-15.7.3-arm64-arm-64bit
ChimeraX Version: 1.12.dev202602210126 (2026-02-21 01:26:54 UTC)
Description
traceback occurs on startup of current daily build
Log:
Startup Errors
---
error | There was an OpenGL graphics error while starting up. This is usually a problem with the system graphics driver, and the only way to remedy it is to update the graphics driver. ChimeraX will probably not function correctly with the current graphics driver.
"OpenGL error invalid enumerant"
> open /Users/meng/Desktop/startup.cxc
> alias reset view orient; view initial
> alias start tool show $1
> alias whereprefs info path user unversioned config
> alias captut open help:user/tutorials/binding-sites.html#cap-example
> alias previewts toolshed url https://cxtoolshed-
> preview.rbvi.ucsf.edu;toolshed reload available
> alias normalts toolshed url https://cxtoolshed.rbvi.ucsf.edu;toolshed reload
> available
> alias btut open
> https://www.cgl.ucsf.edu/home/meng/chimerax/vdocs/user/tutorials/binding-
> sites.html; ui dockable false "Help Viewer"
> alias stut open https://www.rbvi.ucsf.edu/chimerax/data/conservation-
> coloring/conservation-coloring.html; ui dockable false "Help Viewer"
> alias ltut open https://www.rbvi.ucsf.edu/chimerax/data/loop-modeling/loop-
> modeling.html; ui dockable false "Help Viewer"
> alias mtut open https://www.rbvi.ucsf.edu/chimerax/data/mole-channel/mole-
> channel.html; ui dockable false "Help Viewer"; windowsize 600 800
executed startup.cxc
UCSF ChimeraX version: 1.12.dev202602210126 (2026-02-21)
© 2016-2026 Regents of the University of California. All rights reserved.
How to cite UCSF ChimeraX
Traceback (most recent call last):
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 103, in _expose_event
self._create_opengl_context()
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 136, in _create_opengl_context
r.initialize_opengl(lw, lh)
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/opengl.py", line 1174, in initialize_opengl
vao = GL.glGenVertexArrays(1)
^^^^^^^^^^^^^^^^^^^^^^^
File "src/latebind.pyx", line 40, in
OpenGL_accelerate.latebind.LateBind.__call__
File "src/wrapper.pyx", line 319, in
OpenGL_accelerate.wrapper.Wrapper.__call__
File "src/wrapper.pyx", line 312, in
OpenGL_accelerate.wrapper.Wrapper.__call__
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/OpenGL/platform/baseplatform.py", line 487, in __call__
return self(*args, **named)
^^^^^^^^^^^^^^^^^^^^
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError
OpenGL.error.GLError: GLError(
err = 1280,
description = b'invalid enumerant',
baseOperation = glGenVertexArrays,
pyArgs = (1, <object object at 0x17ee853d0>),
cArgs = (1, array([1], dtype=uint32)),
cArguments = (1, array([1], dtype=uint32))
)
OpenGL.error.GLError: GLError(
err = 1280,
description = b'invalid enumerant',
baseOperation = glGenVertexArrays,
pyArgs = (1, ),
cArgs = (1, array([1], dtype=uint32)),
cArguments = (1, array([1], dtype=uint32))
)
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError
See log for complete Python traceback.
Traceback (most recent call last):
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 104, in _expose_event
self.status(self._last_message, self._last_color)
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 171, in status
self._draw_text(msg, color, secondary)
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 177, in _draw_text
self._update_texture(msg, color, secondary)
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 192, in _update_texture
lw, lh = self._renderer.render_size()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/opengl.py", line 636, in render_size
x, y, w, h = fb.viewport
^^^^^^^^^^
TypeError: cannot unpack non-iterable NoneType object
TypeError: cannot unpack non-iterable NoneType object
File
"/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/opengl.py", line 636, in render_size
x, y, w, h = fb.viewport
^^^^^^^^^^
See log for complete Python traceback.
OpenGL version: 4.1 Metal - 89.4
OpenGL renderer: Apple M1 Pro
OpenGL vendor: Apple
Python: 3.11.9
Locale: en_US.UTF-8
Qt version: PySide6 6.10.2, Qt 6.10.2
Qt runtime version: 6.10.2
Qt platform: cocoa
Hardware:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro18,1
Model Number: MK1F3LL/A
Chip: Apple M1 Pro
Total Number of Cores: 10 (8 performance and 2 efficiency)
Memory: 16 GB
System Firmware Version: 13822.61.10
OS Loader Version: 11881.140.96
Software:
System Software Overview:
System Version: macOS 15.7.3 (24G419)
Kernel Version: Darwin 24.6.0
Time since boot: 1 hour, 24 minutes
Graphics/Displays:
Apple M1 Pro:
Chipset Model: Apple M1 Pro
Type: GPU
Bus: Built-In
Total Number of Cores: 16
Vendor: Apple (0x106b)
Metal Support: Metal 3
Displays:
Color LCD:
Display Type: Built-in Liquid Retina XDR Display
Resolution: 3456 x 2234 Retina
Main Display: Yes
Mirror: Off
Online: Yes
Automatically Adjust Brightness: Yes
Connection Type: Internal
Installed Packages:
accessible-pygments: 0.0.5
aiohappyeyeballs: 2.6.1
aiohttp: 3.13.1
aiosignal: 1.4.0
alabaster: 1.0.0
annotated-types: 0.7.0
anyio: 4.12.1
appdirs: 1.4.4
appnope: 0.1.4
asttokens: 3.0.1
attrs: 25.4.0
babel: 2.18.0
beautifulsoup4: 4.13.5
blockdiag: 3.0.0
blosc2: 4.0.0
build: 1.3.0
certifi: 2025.7.14
cftime: 1.6.5
charset-normalizer: 3.4.4
ChimeraX-AddCharge: 1.5.20
ChimeraX-AddH: 2.2.8
ChimeraX-AlignmentAlgorithms: 2.0.2
ChimeraX-AlignmentHdrs: 3.6.2
ChimeraX-AlignmentMatrices: 2.1
ChimeraX-Alignments: 3.2
ChimeraX-AlphaFold: 1.0.1
ChimeraX-AltlocExplorer: 1.2
ChimeraX-AmberInfo: 1.0
ChimeraX-Animations: 1.0
ChimeraX-Aniso: 1.3.2
ChimeraX-Arrays: 1.1
ChimeraX-Atomic: 1.64
ChimeraX-AtomicLibrary: 14.2.3
ChimeraX-AtomSearch: 2.0.1
ChimeraX-AxesPlanes: 2.4
ChimeraX-BasicActions: 1.1.3
ChimeraX-BILD: 1.0
ChimeraX-BlastProtein: 3.0.0
ChimeraX-Boltz: 1.1
ChimeraX-BondRot: 2.0.4
ChimeraX-BugReporter: 1.0.2
ChimeraX-BuildStructure: 2.13.1
ChimeraX-Bumps: 1.0
ChimeraX-BundleBuilder: 1.6.0
ChimeraX-ButtonPanel: 1.0.1
ChimeraX-CageBuilder: 1.0.1
ChimeraX-CellPack: 1.0
ChimeraX-Centroids: 1.4.1
ChimeraX-ChangeChains: 1.1
ChimeraX-CheckWaters: 1.5
ChimeraX-ChemGroup: 2.0.2
ChimeraX-Clashes: 2.3
ChimeraX-ColorActions: 1.0.5
ChimeraX-ColorGlobe: 1.0
ChimeraX-ColorKey: 1.5.8
ChimeraX-CommandLine: 1.3.1
ChimeraX-ConnectStructure: 2.0.1
ChimeraX-Contacts: 1.0.1
ChimeraX-Core: 1.12.dev202602210126
ChimeraX-CoreFormats: 1.2
ChimeraX-coulombic: 1.4.5
ChimeraX-Crosslinks: 1.0
ChimeraX-Crystal: 1.0
ChimeraX-CrystalContacts: 1.0.1
ChimeraX-DataFormats: 1.2.4
ChimeraX-Dicom: 1.2.7
ChimeraX-DistMonitor: 1.4.2
ChimeraX-DockPrep: 1.2
ChimeraX-Dssp: 2.0
ChimeraX-EMDB-SFF: 1.0
ChimeraX-ESMFold: 1.0
ChimeraX-FileHistory: 1.0.1
ChimeraX-FunctionKey: 1.0.1
ChimeraX-Geometry: 1.3
ChimeraX-gltf: 1.0
ChimeraX-Graphics: 1.4.1
ChimeraX-Hbonds: 2.5.3
ChimeraX-Help: 1.3
ChimeraX-HKCage: 1.3
ChimeraX-IHM: 1.1
ChimeraX-ImageFormats: 1.2
ChimeraX-IMOD: 1.0
ChimeraX-IO: 1.0.4
ChimeraX-ItemsInspection: 1.0.1
ChimeraX-IUPAC: 1.0
ChimeraX-KVFinder: 1.8.2
ChimeraX-Label: 1.3
ChimeraX-LightingGUI: 1.0
ChimeraX-ListInfo: 1.3.1
ChimeraX-Log: 1.2.2
ChimeraX-LookingGlass: 1.1
ChimeraX-Maestro: 1.9.2
ChimeraX-Map: 1.3
ChimeraX-MapData: 2.0
ChimeraX-MapEraser: 1.0.1
ChimeraX-MapFilter: 2.0.1
ChimeraX-MapFit: 2.0
ChimeraX-MapSeries: 2.1.1
ChimeraX-Markers: 1.0.1
ChimeraX-Mask: 1.0.2
ChimeraX-MatchMaker: 2.2.2
ChimeraX-MCopy: 1.0
ChimeraX-MCPServer: 0.2.0
ChimeraX-MDcrds: 2.17.2
ChimeraX-MedicalToolbar: 1.1
ChimeraX-Meeting: 1.0.1
ChimeraX-Minimize: 1.3.5
ChimeraX-MLP: 1.1.1
ChimeraX-mmCIF: 2.16
ChimeraX-MMTF: 2.2
ChimeraX-ModelArchive: 1.0
ChimeraX-Modeller: 1.5.23
ChimeraX-ModelPanel: 1.6.1
ChimeraX-ModelSeries: 1.0.1
ChimeraX-Mol2: 2.0.3
ChimeraX-Mole: 1.0
ChimeraX-Morph: 1.0.2
ChimeraX-MouseModes: 1.2
ChimeraX-Movie: 1.0.1
ChimeraX-MutationScores: 1.0
ChimeraX-Neuron: 1.0
ChimeraX-Nifti: 1.2
ChimeraX-NMRSTAR: 1.0.2
ChimeraX-NRRD: 1.2
ChimeraX-Nucleotides: 2.0.3
ChimeraX-OpenCommand: 1.15.2
ChimeraX-OpenFold: 1.0
ChimeraX-OrthoPick: 1.0.1
ChimeraX-PDB: 2.7.12
ChimeraX-PDBBio: 1.0.1
ChimeraX-PDBLibrary: 1.0.5
ChimeraX-PDBMatrices: 1.0
ChimeraX-PhenixUI: 1.4.12
ChimeraX-PickBlobs: 1.0.1
ChimeraX-Positions: 1.0
ChimeraX-PresetMgr: 1.1.4
ChimeraX-ProfileGrids: 1.5.1
ChimeraX-PubChem: 2.2
ChimeraX-ReadPbonds: 1.0.1
ChimeraX-Registration: 1.1.2
ChimeraX-RemoteControl: 1.0
ChimeraX-RenderByAttr: 1.8
ChimeraX-RenumberResidues: 1.1
ChimeraX-ResidueFit: 1.0.1
ChimeraX-RestServer: 1.3.3
ChimeraX-RNALayout: 1.0
ChimeraX-RotamerLibMgr: 4.0
ChimeraX-RotamerLibsDunbrack: 2.0
ChimeraX-RotamerLibsDynameomics: 2.0
ChimeraX-RotamerLibsRichardson: 2.0
ChimeraX-SaveCommand: 1.5.2
ChimeraX-Scenes: 0.3.1
ChimeraX-SchemeMgr: 1.0
ChimeraX-SDF: 2.0.3
ChimeraX-Segger: 1.0
ChimeraX-Segment: 1.0.1
ChimeraX-Segmentations: 3.5.12
ChimeraX-SelInspector: 1.0
ChimeraX-SeqView: 2.17.5
ChimeraX-Shape: 1.1
ChimeraX-Shell: 1.0.1
ChimeraX-Shortcuts: 1.2.1
ChimeraX-ShowSequences: 1.0.3
ChimeraX-SideView: 1.0.1
ChimeraX-SimilarStructures: 1.0.1
ChimeraX-Smiles: 2.1.2
ChimeraX-SmoothLines: 1.0
ChimeraX-SNFG: 1.0
ChimeraX-SpaceNavigator: 1.0
ChimeraX-StdCommands: 1.19.3
ChimeraX-STL: 1.0.1
ChimeraX-Storm: 1.0
ChimeraX-StructMeasure: 1.2.1
ChimeraX-Struts: 1.0.1
ChimeraX-Surface: 1.0.1
ChimeraX-SwapAA: 2.0.1
ChimeraX-SwapRes: 2.5.2
ChimeraX-TapeMeasure: 1.0
ChimeraX-TaskManager: 1.0
ChimeraX-Test: 1.0
ChimeraX-Toolbar: 1.2.3
ChimeraX-ToolshedUtils: 1.2.4
ChimeraX-Topography: 1.0
ChimeraX-ToQuest: 1.0
ChimeraX-Tug: 1.0.1
ChimeraX-UI: 1.50.3
ChimeraX-Umap: 1.0
ChimeraX-uniprot: 2.3.2
ChimeraX-UnitCell: 1.0.1
ChimeraX-ViewDock: 1.6
ChimeraX-VIPERdb: 1.0
ChimeraX-Vive: 1.1
ChimeraX-VolumeMenu: 1.0.1
ChimeraX-vrml: 1.0
ChimeraX-VTK: 1.0
ChimeraX-WavefrontOBJ: 1.0
ChimeraX-WebCam: 1.0.2
ChimeraX-WebServices: 1.1.5
ChimeraX-Zone: 1.0.1
click: 8.3.1
colorama: 0.4.6
comm: 0.2.3
contourpy: 1.3.3
coverage: 7.13.4
cxservices: 1.2.3
cycler: 0.12.1
Cython: 3.1.4
debugpy: 1.8.20
decorator: 5.2.1
docutils: 0.21.2
executing: 2.2.1
filelock: 3.19.1
fonttools: 4.61.1
frozenlist: 1.8.0
funcparserlib: 2.0.0a0
glfw: 2.10.0
grako: 3.16.5
h11: 0.16.0
h5py: 3.15.1
html2text: 2025.4.15
httpcore: 1.0.9
httpx: 0.28.1
httpx-sse: 0.4.3
idna: 3.11
ihm: 2.2
imagecodecs: 2024.6.1
imagesize: 1.4.1
iniconfig: 2.3.0
ipykernel: 7.1.0
ipython: 9.9.0
ipython_pygments_lexers: 1.1.1
ipywidgets: 8.1.8
jedi: 0.19.2
Jinja2: 3.1.6
jsonschema: 4.26.0
jsonschema-specifications: 2025.9.1
jupyter_client: 8.8.0
jupyter_core: 5.9.1
jupyterlab_widgets: 3.0.16
kiwisolver: 1.4.9
line_profiler: 5.0.0
lxml: 6.0.2
lz4: 4.3.2
Markdown: 3.8.2
MarkupSafe: 3.0.3
matplotlib: 3.10.7
matplotlib-inline: 0.2.1
mcp: 1.18.0
msgpack: 1.1.1
multidict: 6.7.1
ndindex: 1.10.1
nest-asyncio: 1.6.0
netCDF4: 1.6.5
networkx: 3.3
nibabel: 5.2.0
nptyping: 2.5.0
numexpr: 2.14.1
numpy: 1.26.4
OpenMM: 8.4.0
openvr: 1.26.701
packaging: 25.0
ParmEd: 4.2.2
parso: 0.8.6
pep517: 0.13.1
pexpect: 4.9.0
pickleshare: 0.7.5
pillow: 11.3.0
pip: 25.2
pkginfo: 1.12.1.2
platformdirs: 4.9.2
pluggy: 1.6.0
prompt_toolkit: 3.0.52
propcache: 0.4.1
psutil: 7.0.0
ptyprocess: 0.7.0
pure_eval: 0.2.3
py-cpuinfo: 9.0.0
pybind11: 3.0.1
pycollada: 0.8
pydantic: 2.12.5
pydantic-settings: 2.13.1
pydantic_core: 2.41.5
pydata-sphinx-theme: 0.16.1
pydicom: 2.4.4
Pygments: 2.18.0
pynmrstar: 3.5.0
pynrrd: 1.0.0
PyOpenGL: 3.1.10
PyOpenGL-accelerate: 3.1.10
pyopenxr: 1.1.4501
pyparsing: 3.3.2
pyproject_hooks: 1.2.0
PySide6: 6.10.2
PySide6_Addons: 6.10.2
PySide6_Essentials: 6.10.2
pytest: 9.0.2
pytest-cov: 7.0.0
python-dateutil: 2.9.0.post0
python-dotenv: 1.2.1
python-multipart: 0.0.22
pyzmq: 27.1.0
qtconsole: 5.7.0
QtPy: 2.4.3
qtshim: 1.2.1
RandomWords: 0.4.0
referencing: 0.37.0
requests: 2.32.5
roman-numerals: 4.1.0
rpds-py: 0.30.0
scipy: 1.14.0
setuptools: 80.9.0
sfftk-rw: 0.8.1
shiboken6: 6.10.2
six: 1.17.0
snowballstemmer: 3.0.1
sortedcontainers: 2.4.0
soupsieve: 2.8.3
Sphinx: 9.0.4
sphinx-autodoc-typehints: 3.6.1
sphinxcontrib-applehelp: 2.0.0
sphinxcontrib-blockdiag: 3.0.0
sphinxcontrib-devhelp: 2.0.0
sphinxcontrib-htmlhelp: 2.1.0
sphinxcontrib-jsmath: 1.0.1
sphinxcontrib-qthelp: 2.0.0
sphinxcontrib-serializinghtml: 2.0.0
sse-starlette: 3.2.0
stack-data: 0.6.3
starlette: 0.52.1
superqt: 0.7.6
tables: 3.10.2
tcia_utils: 1.5.1
tifffile: 2025.3.13
tinyarray: 1.2.5
tornado: 6.5.4
traitlets: 5.14.3
typing-inspection: 0.4.2
typing_extensions: 4.15.0
urllib3: 2.6.3
uvicorn: 0.41.0
wcwidth: 0.6.0
webcolors: 24.11.1
wheel: 0.45.1
wheel-filename: 1.4.2
widgetsnbextension: 4.0.15
yarl: 1.22.0
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