Hi Chimerax Team, Could you please assist me in making ChimeraX 1.11 work on my machine? It was built without error from GitLab. ./ChimeraX --version UCSF ChimeraX version: 1.12.dev202601140146 (2026-01-14) © 2016-2026 Regents of the University of California. All rights reserved. My machine is: nvidia-smi +-----------------------------------------------------------------------------------------+ | NVIDIA-SMI 570.195.03 Driver Version: 570.195.03 CUDA Version: 12.8 | |-----------------------------------------+------------------------+----------------------+ | GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |=========================================+========================+======================| | 0 NVIDIA L4 On | 00000000:E5:00.0 Off | 0 | | N/A 36C P8 15W / 72W | 45MiB / 23034MiB | 0% Default | | | | N/A | +-----------------------------------------+------------------------+----------------------+ +-----------------------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=========================================================================================| | 0 N/A N/A 1877027 G /usr/libexec/Xorg 39MiB | +-----------------------------------------------------------------------------------------+ The window pops up, then crashes as below. $ module load virtualgl Loading virtualgl/2.5.0 Loading requirement: libjpeg-turbo/1.4.2 $ vglrun ./ChimeraX NOTE: available bundle cache has not been initialized yet WARNING: GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium. [1896428:1897552:0115/140239.807851:ERROR:gl_surface_egl.cc(303)] No suitable EGL configs found. [1896428:1897552:0115/140239.807872:ERROR:gl_context_egl.cc(159)] Failed to get config for surface 0 [1896428:1897552:0115/140239.807885:ERROR:gl_surface_egl.cc(303)] No suitable EGL configs found. [1896428:1897552:0115/140239.807889:ERROR:gl_surface_egl.cc(1018)] No suitable EGL configs found for initialization. [1896428:1897552:0115/140239.807892:ERROR:gpu_info_collector.cc(85)] gl::GLContext::CreateOffscreenGLSurface failed [1896428:1897552:0115/140239.807895:ERROR:gpu_info_collector.cc(597)] Could not create surface for info collection. [1896428:1897552:0115/140239.808002:ERROR:gl_surface_egl.cc(303)] No suitable EGL configs found. [1896428:1897552:0115/140239.808006:ERROR:gl_surface_egl.cc(1018)] No suitable EGL configs found for initialization. [1896428:1897552:0115/140239.808062:ERROR:gl_surface_egl.cc(303)] No suitable EGL configs found. [1896428:1897552:0115/140239.808065:ERROR:gl_surface_egl.cc(1018)] No suitable EGL configs found for initialization. [1896428:1897552:0115/140239.808068:ERROR:gpu_info_collector.cc(85)] gl::GLContext::CreateOffscreenGLSurface failed [1896428:1897552:0115/140239.808070:ERROR:gpu_info_collector.cc(597)] Could not create surface for info collection. Fatal Python error: Segmentation fault Thread 0x00007f62af7fe640 (most recent call first): File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/ssl.py", line 1382 in do_handshake File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/ssl.py", line 1104 in _create File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/ssl.py", line 517 in wrap_socket File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 1475 in connect File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 996 in send File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 1058 in _send_output File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 1298 in endheaders File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 1349 in _send_request File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/http/client.py", line 1303 in request File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 1348 in do_open File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 1391 in https_open File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 496 in _call_chain File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 536 in _open File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 519 in open File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/urllib/request.py", line 216 in urlopen File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/site-packages/chimerax/core/toolshed/available.py", line 62 in load File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/site-packages/chimerax/core/toolshed/__init__.py", line 516 in reload_available File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/threading.py", line 982 in run File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/threading.py", line 1045 in _bootstrap_inner File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/threading.py", line 1002 in _bootstrap Thread 0x00007f6378614740 (most recent call first): File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/site-packages/chimerax/ui/gui.py", line 414 in event_loop File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/site-packages/chimerax/core/__main__.py", line 1064 in init File "/apps/src/CHIMERAX/src/ChimeraX/ChimeraX.app/lib/python3.11/site-packages/chimerax/core/__main__.py", line 1229 in <module> File "<frozen runpy>", line 88 in _run_code File "<frozen runpy>", line 198 in _run_module_as_main Extension modules: chimerax.arrays._arrays, numpy.core._multiarray_umath, numpy.core._multiarray_tests, numpy.linalg._umath_linalg, numpy.fft._pocketfft_internal, numpy.random._common, numpy.random.bit_generator, numpy.random._bounded_integers, numpy.random._mt19937, numpy.random.mtrand, numpy.random._philox, numpy.random._pcg64, numpy.random._sfc64, numpy.random._generator, chimerax.geometry._geometry, PyQt6.QtCore, PyQt6.QtGui, PyQt6.QtWidgets, PyQt6.QtNetwork, PyQt6.QtPrintSupport, PyQt6.QtWebChannel, PyQt6.QtWebEngineCore, PyQt6.QtWebEngineWidgets, psutil._psutil_linux, psutil._psutil_posix, chimerax.atomic_lib._load_libs, tinyarray, chimerax.atomic.cymol, chimerax.atomic.cytmpl, chimerax.map._map, chimerax.pdb_lib._load_libs, PIL._imaging, chimerax.surface._surface, OpenGL_accelerate.errorchecker, OpenGL_accelerate.wrapper, OpenGL_accelerate.formathandler, OpenGL_accelerate.arraydatatype, OpenGL_accelerate.latebind, OpenGL_accelerate.vbo, OpenGL_accelerate.numpy_formathandler, OpenGL_accelerate.nones_formathandler (total: 41) Segmentation fault (core dumped) Thank you so much. Please let me know if you need more information. Regards, Angel -- *ANGELIKA DIBIJO* System Administrator *Monash eResearch* Monash University, Clayton Campus M: + 61 426371313 E: angelika.dibijo@monash.edu W: Monash-eResearch <http://www.monash.edu.au/eresearch> We acknowledge and pay respect to the Elders and Traditional Owners of the land on which our four Australian campuses stand.