id summary reporter owner description type status priority milestone component version resolution keywords cc blockedby blocking notify_on_close platform project 19881 Error at startup glGenVertexArrays() in PySide6 Feb 20 daily build goddard@… Zach Pearson "{{{ The following bug report has been submitted: Platform: macOS-26.3-arm64-arm-64bit ChimeraX Version: 1.12.dev202602210126 (2026-02-21 01:26:54 UTC) Description Installed daily build just now (Feb 23, 2026), started and it failed with an error, same as bug reports #19874 and 19873. When the error dialog appeared I pressed Report Bug button and the bug report panel showed but I could not type in the description until I hit Ok on the original Error dialog which had not disappeared. 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"" 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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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, ), 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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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/goddard/Desktop/ChimeraX Feb 23 2026.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 - 90.5 OpenGL renderer: Apple M2 Ultra 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: Mac Studio Model Identifier: Mac14,14 Model Number: Z1800003VLL/A Chip: Apple M2 Ultra Total Number of Cores: 24 (16 Performance and 8 Efficiency) Memory: 64 GB System Firmware Version: 13822.81.10 OS Loader Version: 13822.81.10 Software: System Software Overview: System Version: macOS 26.3 (25D125) Kernel Version: Darwin 25.3.0 Time since boot: 6 days, 2 hours, 32 minutes Graphics/Displays: Apple M2 Ultra: Chipset Model: Apple M2 Ultra Type: GPU Bus: Built-In Total Number of Cores: 60 Vendor: Apple (0x106b) Metal Support: Metal 4 Displays: PHL 278B1: Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition) UI Looks like: 1920 x 1080 @ 60.00Hz Main Display: Yes Mirror: Off Online: Yes Rotation: Supported 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-CiliaBuilder: 1.0.9 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-DAQplugin: 0.12.0 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-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-TutorialReadFormat: 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 coloredlogs: 15.0.1 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 flatbuffers: 25.12.19 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 humanfriendly: 10.0 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 mpmath: 1.3.0 mrcfile: 1.5.4 msgpack: 1.1.1 multidict: 6.7.1 narwhals: 2.16.0 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: 2.4.2 numpy: 1.26.4 onnxruntime: 1.23.2 OpenMM: 8.4.0 openvr: 1.26.701 packaging: 25.0 pandas: 2.3.3 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 plotly: 6.5.2 pluggy: 1.6.0 prompt_toolkit: 3.0.52 propcache: 0.4.1 protobuf: 6.33.4 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 pyKVFinder: 0.9.0 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: 1.16.3 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 sympy: 1.14.0 tables: 3.10.2 tcia_utils: 1.5.1 tifffile: 2025.3.13 tinyarray: 1.2.5 tomlkit: 0.14.0 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 }}} " defect closed normal Window Toolkit fixed Eric Pettersen all ChimeraX