Crash when resizing a window running with XDG_SESSION_TYPE=x11 under KDE-Plasma/Wayland

Author: geppiCreated Apr 1, 2026Updated Aug 26, 2026

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For Python issues, I have tested with the latest development wheel.
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Describe the issue

Resizing the application window on a system running KDE-Plasma/Wayland with the setting XDG_SESSION_TYPE=x11 causes an application crash.

Steps to reproduce the bug

python

export XDG_SESSION_TYPE=x11

python -c "import open3d as o3d; \
           mesh = o3d.geometry.TriangleMesh.create_sphere(); \
           mesh.compute_vertex_normals(); \
           o3d.visualization.draw(mesh, raw_mode=True)"

# Resize the application window.

Error message

terminate called after throwing an instance of 'utils::PostconditionPanic'
Aborted                    (core dumped) python -c "import open3d as o3d;            mesh = o3d.geometry.TriangleMesh.create_sphere();            mesh.compute_vertex_normals();            o3d.visualization.draw(mesh, raw_mode=True)"

Expected behavior

Obviously, resizing the application window should not crash the application. ;-)

Open3D, Python and System information

markdown

- Operating system: ArchLinux with KDE-Plasma/Wayland
- Python version: Python 3.14.3
- Open3D version: 0.19.0
- System architecture: x86
- Is this a remote workstation?: no
- How did you install Open3D?: pip
- Compiler version (if built from source):

Additional information

Is it planned to natively support Wayland sometime in the near future?

Source: isl-org/Open3D

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