Since you don't have those libraries already installed, it seems like you have installed Chimerax on a remote server instead of a desktop system. That is officially not supported unless you are running ChimeraX in nogui mode (which doesn't need those libraries). That said, using VirtualGL on the server can work around remote display problems.

Dear ChimeraX developers,

I am installing the ChimeraX/1.3 in one of our GPU workstation (CentOS Linux 7). The installation processed well but after I tried to start the chimerax program, it showed:

QFactoryLoader::QFactoryLoader() checking directory path "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqeglfs.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqeglfs.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"eglfs"

]

},

"archreq": 0,

"className": "QEglFSIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("eglfs")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqlinuxfb.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqlinuxfb.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"linuxfb"

]

},

"archreq": 0,

"className": "QLinuxFbIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("linuxfb")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqminimal.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqminimal.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"minimal"

]

},

"archreq": 0,

"className": "QMinimalIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("minimal")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqminimalegl.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqminimalegl.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"minimalegl"

]

},

"archreq": 0,

"className": "QMinimalEglIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("minimalegl")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqoffscreen.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqoffscreen.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"offscreen"

]

},

"archreq": 0,

"className": "QOffscreenIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("offscreen")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqvnc.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqvnc.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"vnc"

]

},

"archreq": 0,

"className": "QVncIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("vnc")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-egl.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-egl.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"wayland-egl"

]

},

"archreq": 0,

"className": "QWaylandEglPlatformIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("wayland-egl")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-generic.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-generic.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"wayland"

]

},

"archreq": 0,

"className": "QWaylandIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("wayland")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-egl.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-egl.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"wayland-xcomposite-egl"

]

},

"archreq": 0,

"className": "QWaylandXCompositeEglPlatformIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("wayland-xcomposite-egl")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-glx.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-glx.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"wayland-xcomposite-glx"

]

},

"archreq": 0,

"className": "QWaylandXCompositeGlxPlatformIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("wayland-xcomposite-glx")

QFactoryLoader::QFactoryLoader() looking at "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so"

Found metadata in lib /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so, metadata=

{

"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",

"MetaData": {

"Keys": [

"xcb"

]

},

"archreq": 0,

"className": "QXcbIntegrationPlugin",

"debug": false,

"version": 331520

}

Got keys from plugin meta data ("xcb")

QFactoryLoader::QFactoryLoader() checking directory path "/usr/libexec/UCSF-ChimeraX/bin/platforms" ...

Cannot load library /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so: (libxcb-icccm.so.4: cannot open shared object file: No such file or directory)

QLibraryPrivate::loadPlugin failed on "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so" : "Cannot load library /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so: (libxcb-icccm.so.4: cannot open shared object file: No such file or directory)"

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.

Fatal Python error: Aborted

Current thread 0x00007f107e0f8740 (most recent call first):

File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/chimerax/ui/gui.py", line 159 in __init__

File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/ChimeraX_main.py", line 577 in init

File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/ChimeraX_main.py", line 1018 in <module>

File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/runpy.py", line 87 in _run_code

File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/runpy.py", line 197 in _run_module_as_main

Aborted (core dumped)

I have also typed: ldd /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so

linux-vdso.so.1 => (0x00007ffc9f19e000)

libQt5XcbQpa.so.5 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libQt5XcbQpa.so.5 (0x00007f760e4a4000)

libfontconfig.so.1 => /lib64/libfontconfig.so.1 (0x00007f760e245000)

libfreetype.so.6 => /lib64/libfreetype.so.6 (0x00007f760df86000)

libz.so.1 => /lib64/libz.so.1 (0x00007f760dd70000)

libQt5Gui.so.5 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libQt5Gui.so.5 (0x00007f760d43e000)

libQt5DBus.so.5 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libQt5DBus.so.5 (0x00007f760d1b2000)

libQt5Core.so.5 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libQt5Core.so.5 (0x00007f760c9bc000)

libGL.so.1 => /lib64/libGL.so.1 (0x00007f760c712000)

libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f760c4f6000)

libX11-xcb.so.1 => /lib64/libX11-xcb.so.1 (0x00007f760c2f4000)

libxcb-icccm.so.4 => not found

libxcb-image.so.0 => not found

libxcb-shm.so.0 => /lib64/libxcb-shm.so.0 (0x00007f760c0ef000)

libxcb-util.so.1 => /lib64/libxcb-util.so.1 (0x00007f760bee8000)

libxcb-keysyms.so.1 => /lib64/libxcb-keysyms.so.1 (0x00007f760bce5000)

libxcb-randr.so.0 => /lib64/libxcb-randr.so.0 (0x00007f760bad5000)

libxcb-render-util.so.0 => not found

libxcb-render.so.0 => /lib64/libxcb-render.so.0 (0x00007f760b8c6000)

libxcb-shape.so.0 => /lib64/libxcb-shape.so.0 (0x00007f760b6c2000)

libxcb-sync.so.1 => /lib64/libxcb-sync.so.1 (0x00007f760b4ba000)

libxcb-xfixes.so.0 => /lib64/libxcb-xfixes.so.0 (0x00007f760b2b2000)

libxcb-xinerama.so.0 => /lib64/libxcb-xinerama.so.0 (0x00007f760b0af000)

libxcb-xkb.so.1 => /lib64/libxcb-xkb.so.1 (0x00007f760ae92000)

libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f760ac6a000)

libXext.so.6 => /lib64/libXext.so.6 (0x00007f760aa58000)

libX11.so.6 => /lib64/libX11.so.6 (0x00007f760a719000)

libxkbcommon-x11.so.0 => /lib64/libxkbcommon-x11.so.0 (0x00007f760a511000)

libxkbcommon.so.0 => /lib64/libxkbcommon.so.0 (0x00007f760a2d1000)

libdl.so.2 => /lib64/libdl.so.2 (0x00007f760a0cc000)

libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f7609dc4000)

libm.so.6 => /lib64/libm.so.6 (0x00007f7609ac2000)

libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f76098ab000)

libc.so.6 => /lib64/libc.so.6 (0x00007f76094dd000)

libxcb-icccm.so.4 => not found

libxcb-image.so.0 => not found

libxcb-render-util.so.0 => not found

libgthread-2.0.so.0 => /lib64/libgthread-2.0.so.0 (0x00007f76092da000)

libglib-2.0.so.0 => /lib64/libglib-2.0.so.0 (0x00007f7608fc3000)

libexpat.so.1 => /lib64/libexpat.so.1 (0x00007f7608d99000)

libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f7608b93000)

libbz2.so.1 => /lib64/libbz2.so.1 (0x00007f7608983000)

libpng15.so.15 => /lib64/libpng15.so.15 (0x00007f7608758000)

libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x00007f7608507000)

libicui18n.so.56 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libicui18n.so.56 (0x00007f760806e000)

libicuuc.so.56 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libicuuc.so.56 (0x00007f7607cb5000)

libicudata.so.56 => /usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/PyQt5/Qt/plugins/platforms/../../lib/libicudata.so.56 (0x00007f76062d2000)

/lib64/ld-linux-x86-64.so.2 (0x00007f760ea02000)

libGLX.so.0 => /lib64/libGLX.so.0 (0x00007f76060a2000)

libGLdispatch.so.0 => /lib64/libGLdispatch.so.0 (0x00007f7605dce000)

libXau.so.6 => /lib64/libXau.so.6 (0x00007f7605bca000)

libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f7605967000)

libsystemd.so.0 => /lib64/libsystemd.so.0 (0x00007f7605736000)

libcap.so.2 => /lib64/libcap.so.2 (0x00007f7605530000)

librt.so.1 => /lib64/librt.so.1 (0x00007f7605328000)

libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f7605101000)

liblzma.so.5 => /lib64/liblzma.so.5 (0x00007f7604eda000)

liblz4.so.1 => /lib64/liblz4.so.1 (0x00007f7604ccb000)

libgcrypt.so.11 => /lib64/libgcrypt.so.11 (0x00007f7604a4a000)

libgpg-error.so.0 => /lib64/libgpg-error.so.0 (0x00007f7604844000)

libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f760462a000)

libdw.so.1 => /lib64/libdw.so.1 (0x00007f76043d9000)

libattr.so.1 => /lib64/libattr.so.1 (0x00007f76041d3000)

libelf.so.1 => /lib64/libelf.so.1 (0x00007f7603fbb000)

I have searched the ChimeraX mail list and found several previous email talking about this issue but I have tried all of them

For instance, I have re-install the libxcb library: sudo yum reinstall libxcb

but none of it could work.

Would you like to check this and let me know how to solve this problem?

Thanks a lot!

Long Gui, Ph.D.

Postdoc Researcher, Nicastro Lab

University of Texas Southwestern Medical Center

Long.Gui@utsouthwestern.edu

Tel: (214)-645-1561

UT Southwestern

Medical Center

The future of medicine, today.

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