This problem where ChimeraX won't start on Linux and complains about Qt plugin xcb was discussed a few months ago

https://www.rbvi.ucsf.edu/pipermail/chimerax-users/2021-June/002339.html

Apparently it means that the Linux system is missing a needed library.  And the above discussion says ChimeraX 1.2.5.1 on Linux fixed the problem.

Tom

On Aug 2, 2021, at 12:11 PM, Elaine Meng via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Vanessa,
Please send ChimeraX questions to chimerax-users@cgl.ucsf.edu (CC'd here, so no need to do anything this time).

Since I don't know the answer, I kept waiting for somebody else to answer your question... and didn't notice until now that you had sent it to only me.

Thanks,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Aug 1, 2021, at 1:51 AM, Vanessa Roy <vanessaroy@mail.tau.ac.il> wrote:

Dear ChimeraX development team,

We encountered issues while installing ChimeraX on our server and wanted to ask whether you could help us understand what the problem is? We haven't yet found a solution to our problem.
Here is the output after installation:

# /home/apps/chimerax-1.2.5-rc-2021.05.24/bin/ChimeraX
X11 connection rejected because of wrong authentication.
qt.qpa.xcb: could not connect to display localhost:10.0
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 0x00007f479c05d740 (most recent call first):
 File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/chimerax/ui/gui.py", line 119 in __init__
 File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/ChimeraX_main.py", line 500 in init
 File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/ChimeraX_main.py", line 919 in <module>
 File "/home/apps/chimerax-1.1/lib/python3.7/runpy.py", line 85 in _run_code
 File "/home/apps/chimerax-1.1/lib/python3.7/runpy.py", line 193 in _run_module_as_main
Aborted (core dumped)

We would greatly appreciate your advice on how to solve this issue.

Many thanks for your help!

Best,
Vanessa
--
Vanessa Roy
Gil Ast Lab
Department of Human Molecular Genetics and Biochemistry
Sackler Faculty of Medicine | Tel Aviv University

_______________________________________________
ChimeraX-users mailing list
ChimeraX-users@cgl.ucsf.edu
Manage subscription:
https://plato.cgl.ucsf.edu/mailman/listinfo/chimerax-users