xr true: A supplied object handle was invalid

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Windows-10-10.0.26100
ChimeraX Version: 1.10.dev202501160116 (2025-01-16 01:16:53 UTC)
Description
Replace this text with list of actions that caused this problem to occur

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 1.10.dev202501160116 (2025-01-16)  
© 2016-2025 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> xr true

started OpenXR rendering SpatialLabs Display Driver  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\core\triggerset.py", line 149, in invoke  
return self._func(self._name, data)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\vive\xr.py", line 786, in _next_frame  
self.process_controller_events()  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\vive\xr.py", line 823, in process_controller_events  
self.process_controller_buttons()  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\vive\xr.py", line 831, in process_controller_buttons  
e = xr.poll_next_event()  
^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\vive\openxr.py", line 740, in poll_next_event  
self._poll_xr_events() # Update self._session_state to detect headset has lost
focus  
^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\chimerax\vive\openxr.py", line 385, in _poll_xr_events  
event_buffer = xr.poll_event(self._instance)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\xr\functions.py", line 144, in poll_event  
raise result  
xr.exception.HandleInvalidError: A supplied object handle was invalid.  
  
Error processing trigger "new frame":  
xr.exception.HandleInvalidError: A supplied object handle was invalid.  
  
File "C:\Program Files\ChimeraX 1.10.dev202501160116\bin\Lib\site-
packages\xr\functions.py", line 144, in poll_event  
raise result  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.0 NVIDIA 556.18
OpenGL renderer: NVIDIA RTX 4500 Ada Generation/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation

Python: 3.11.4
Locale: en_US.cp1252
Qt version: PyQt6 6.8.0, Qt 6.8.1
Qt runtime version: 6.8.1
Qt platform: windows

Manufacturer: LENOVO
Model: 30GUSJKD00
OS: Microsoft Windows 11 Pro (Build 26100)
Memory: 68,325,134,336
MaxProcessMemory: 137,438,953,344
CPU: 28 Intel(R) Core(TM) i7-14700
OSLanguage: en-US

Installed Packages:
    alabaster: 1.0.0
    anyio: 4.8.0
    appdirs: 1.4.4
    asttokens: 3.0.0
    auditwheel: 6.2.0
    autocommand: 2.2.2
    babel: 2.16.0
    backports.tarfile: 1.2.0
    beautifulsoup4: 4.12.3
    blockdiag: 3.0.0
    blosc2: 3.0.0
    build: 1.2.1
    certifi: 2024.12.14
    cftime: 1.6.4.post1
    charset-normalizer: 3.4.1
    ChimeraX-AddCharge: 1.5.18
    ChimeraX-AddH: 2.2.6
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.5
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 2.16.2
    ChimeraX-AlphaFold: 1.0.1
    ChimeraX-AltlocExplorer: 1.1.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.60
    ChimeraX-AtomicLibrary: 14.1.11
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.2
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 3.0.0
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.2
    ChimeraX-BuildStructure: 2.13.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.4.0
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.4
    ChimeraX-ChemGroup: 2.0.1
    ChimeraX-Clashes: 2.3
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.8
    ChimeraX-CommandLine: 1.2.5
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.10.dev202501160116
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.4
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.3
    ChimeraX-Dicom: 1.2.7
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.1.3
    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
    ChimeraX-Help: 1.3
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.3
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-KVFinder: 1.5.1
    ChimeraX-Label: 1.1.14
    ChimeraX-ListInfo: 1.2.2
    ChimeraX-Log: 1.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.1
    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: 2.1.6
    ChimeraX-MCopy: 1.0
    ChimeraX-MDcrds: 2.7.2
    ChimeraX-MedicalToolbar: 1.1
    ChimeraX-Meeting: 1.0.1
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.14.2
    ChimeraX-MMTF: 2.2
    ChimeraX-ModelArchive: 1.0
    ChimeraX-Modeller: 1.5.18
    ChimeraX-ModelPanel: 1.5
    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
    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: 1.14
    ChimeraX-OrthoPick: 1.0.1
    ChimeraX-PDB: 2.7.7
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.4
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1.2
    ChimeraX-ProfileGrids: 1.0.1
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.6.3
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.3.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.2
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.5.7
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.15
    ChimeraX-Shape: 1.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.2.0
    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-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.19.1
    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: 2.5.1
    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: 1.43
    ChimeraX-Umap: 1.0
    ChimeraX-uniprot: 2.3.1
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDockX: 1.4.4
    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: 1.1.4
    ChimeraX-Zone: 1.0.1
    colorama: 0.4.6
    comm: 0.2.2
    comtypes: 1.4.5
    contourpy: 1.3.1
    coverage: 7.6.10
    cxservices: 1.2.3
    cycler: 0.12.1
    Cython: 3.0.10
    debugpy: 1.8.11
    decorator: 5.1.1
    docutils: 0.21.2
    executing: 2.1.0
    filelock: 3.15.4
    fonttools: 4.55.3
    funcparserlib: 2.0.0a0
    glfw: 2.8.0
    grako: 3.16.5
    h11: 0.14.0
    h5py: 3.12.1
    html2text: 2024.2.26
    httpcore: 1.0.7
    httpx: 0.28.1
    idna: 3.10
    ihm: 1.3
    imagecodecs: 2024.6.1
    imagesize: 1.4.1
    importlib_metadata: 8.0.0
    importlib_resources: 6.4.0
    inflect: 7.3.1
    iniconfig: 2.0.0
    ipykernel: 6.29.5
    ipython: 8.26.0
    ipywidgets: 8.1.5
    jaraco.context: 5.3.0
    jaraco.functools: 4.0.1
    jaraco.text: 3.12.1
    jedi: 0.19.1
    Jinja2: 3.1.5
    jupyter_client: 8.6.2
    jupyter_core: 5.7.2
    jupyterlab_widgets: 3.0.13
    kiwisolver: 1.4.8
    line_profiler: 4.1.3
    lxml: 5.2.2
    lz4: 4.3.3
    MarkupSafe: 3.0.2
    matplotlib: 3.9.2
    matplotlib-inline: 0.1.7
    more-itertools: 10.3.0
    msgpack: 1.0.8
    ndindex: 1.9.2
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.10.2
    numpy: 1.26.4
    OpenMM: 8.2.0
    openvr: 1.26.701
    ordered-set: 4.1.0
    packaging: 23.2
    packaging: 24.1
    ParmEd: 4.2.2
    parso: 0.8.4
    pep517: 0.13.1
    pickleshare: 0.7.5
    pillow: 10.4.0
    pip: 24.2
    pkginfo: 1.11.1
    platformdirs: 4.3.6
    platformdirs: 4.2.2
    pluggy: 1.5.0
    prompt_toolkit: 3.0.48
    psutil: 6.0.0
    pure_eval: 0.2.3
    py-cpuinfo: 9.0.0
    pycollada: 0.8
    pydicom: 2.4.4
    pyelftools: 0.31
    Pygments: 2.18.0
    pynmrstar: 3.3.5
    pynrrd: 1.0.0
    PyOpenGL: 3.1.7
    PyOpenGL-accelerate: 3.1.7
    pyopenxr: 1.0.3401
    pyparsing: 3.2.1
    pyproject_hooks: 1.2.0
    PyQt6-commercial: 6.8.0
    PyQt6-Qt6: 6.8.1
    PyQt6-WebEngine-commercial: 6.8.0
    PyQt6-WebEngine-Qt6: 6.8.1
    PyQt6_sip: 13.9.1
    pytest: 8.3.4
    pytest-cov: 6.0.0
    python-dateutil: 2.9.0.post0
    pytz: 2024.2
    pywin32: 306
    pyzmq: 26.2.0
    qtconsole: 5.5.2
    QtPy: 2.4.2
    qtshim: 1.1
    RandomWords: 0.4.0
    requests: 2.32.3
    scipy: 1.14.0
    setuptools: 72.1.0
    sfftk-rw: 0.8.1
    six: 1.16.0
    sniffio: 1.3.1
    snowballstemmer: 2.2.0
    sortedcontainers: 2.4.0
    soupsieve: 2.6
    Sphinx: 8.0.2
    sphinx-autodoc-typehints: 2.2.3
    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
    stack-data: 0.6.3
    superqt: 0.6.3
    tables: 3.10.1
    tcia_utils: 1.5.1
    tifffile: 2024.7.24
    tinyarray: 1.2.4
    tomli: 2.0.1
    tornado: 6.4.2
    traitlets: 5.14.3
    typeguard: 4.3.0
    typing_extensions: 4.12.2
    typing_extensions: 4.12.2
    tzdata: 2024.2
    urllib3: 2.3.0
    wcwidth: 0.2.13
    webcolors: 24.6.0
    wheel: 0.43.0
    wheel: 0.43.0
    wheel-filename: 1.4.1
    widgetsnbextension: 4.0.13
    WMI: 1.5.1
    zipp: 3.19.2

[Tom Goddard]

User tried to start VR session with "xr true" and it gave a invalid handle error trying to poll for events. To get this far it would have already made an OpenXR connection that gave no errors. The instance handle in the poll_event() call that gives the error is the connection to OpenXR. So it seems that maybe the OpenXR connection was closed but ChimeraX did not detect that and tried to continue using the handle. ChimeraX has code to detect that the session has been closed. But it looks like the closed session doesn't propagate up to have ChimeraX switch out of VR mode and it might keep on polling. Should test if that is the case and fix so it exits VR mode and says the OpenXR session was closed.

[Tom Goddard]

Log indicates user was connecting to flat panel stereo display

started OpenXR rendering SpatialLabs Display Driver

The same error happens closing SteamVR while using SteamLink with "xr on", ticket #16689.

[Tom Goddard]

Fixed.

If OpenXR connection is closed in now gives an clear error message saying that with no traceback.
Not sure if ChimeraX displays correctly in 3D to the stereo SpatialLabs View Pro 27" monitor, maybe not, maybe OpenXR just disconnects. Would only be able to debug that if I had this kind of monitor.