<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">This problem where ChimeraX won't start on Linux and complains about Qt plugin xcb was discussed a few months ago<div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.rbvi.ucsf.edu/pipermail/chimerax-users/2021-June/002339.html" class="">https://www.rbvi.ucsf.edu/pipermail/chimerax-users/2021-June/002339.html</a></div><div class=""><br class=""></div><div class="">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.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Tom<br class=""><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 2, 2021, at 12:11 PM, Elaine Meng via ChimeraX-users <<a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi Vanessa,<br class="">Please send ChimeraX questions to <a href="mailto:chimerax-users@cgl.ucsf.edu" class="">chimerax-users@cgl.ucsf.edu</a> (CC'd here, so no need to do anything this time).<br class=""><br class="">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.<br class=""><br class="">Thanks,<br class="">Elaine<br class="">-----<br class="">Elaine C. Meng, Ph.D. <br class="">UCSF Chimera(X) team<br class="">Department of Pharmaceutical Chemistry<br class="">University of California, San Francisco<br class=""><br class=""><blockquote type="cite" class="">On Aug 1, 2021, at 1:51 AM, Vanessa Roy <<a href="mailto:vanessaroy@mail.tau.ac.il" class="">vanessaroy@mail.tau.ac.il</a>> wrote:<br class=""><br class="">Dear ChimeraX development team,<br class=""><br class="">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. <br class="">Here is the output after installation:<br class=""><br class=""># /home/apps/chimerax-1.2.5-rc-2021.05.24/bin/ChimeraX<br class="">X11 connection rejected because of wrong authentication.<br class="">qt.qpa.xcb: could not connect to display localhost:10.0<br class="">qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.<br class="">This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.<br class=""><br class="">Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.<br class=""><br class="">Fatal Python error: Aborted<br class=""><br class="">Current thread 0x00007f479c05d740 (most recent call first):<br class=""> File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/chimerax/ui/gui.py", line 119 in __init__<br class=""> File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/ChimeraX_main.py", line 500 in init<br class=""> File "/home/apps/chimerax-1.1/lib/python3.7/site-packages/ChimeraX_main.py", line 919 in <module><br class=""> File "/home/apps/chimerax-1.1/lib/python3.7/runpy.py", line 85 in _run_code<br class=""> File "/home/apps/chimerax-1.1/lib/python3.7/runpy.py", line 193 in _run_module_as_main<br class="">Aborted (core dumped)<br class=""><br class="">We would greatly appreciate your advice on how to solve this issue.<br class=""><br class="">Many thanks for your help!<br class=""><br class="">Best,<br class="">Vanessa<br class="">-- <br class="">Vanessa Roy<br class="">Gil Ast Lab<br class="">Department of Human Molecular Genetics and Biochemistry<br class="">Sackler Faculty of Medicine | Tel Aviv University<br class=""></blockquote><br class=""><br class="">_______________________________________________<br class="">ChimeraX-users mailing list<br class=""><a href="mailto:ChimeraX-users@cgl.ucsf.edu" class="">ChimeraX-users@cgl.ucsf.edu</a><br class="">Manage subscription:<br class="">https://www.rbvi.ucsf.edu/mailman/listinfo/chimerax-users<br class=""><br class=""></div></div></blockquote></div><br class=""></div></div></body></html>