[chimerax-users] Error in ChimeraX application installation linux ubuntu

Greg Couch gregc at cgl.ucsf.edu
Wed Aug 4 11:01:58 PDT 2021 

I think the real error is "X11 connection rejected because of wrong 
authentication."  And it looks like from the DISPLAY being 
localhost:10.0 that you are not running it locally on your computer, but 
remotely.  To resolve the authentication issue, try "ssh -XY 
remotehost".  And once you get past that error, you'll find that 
remotely running ChimeraX remotely is fraught with difficulties.  We 
recommend running ChimeraX locallly on your computer, but if you have to 
run it remotely, use a VirtualGL (from virtualgl.org) solution.

     HTH,

     Greg

On 8/4/2021 2:57 AM, Vanessa Roy via ChimeraX-users wrote:
> Hi Tom,
>
> Thank you for your email.
>
> Unfortunately, that doesn't work for us either, please see below:
>
> "libxcb-xinerama0" is already installed on our server, but 
> unfortunately the error still exists.
>
> see below:
>
> /~# apt list --installed | grep libxcb-xinerama0/
>
> /WARNING: apt does not have a stable CLI interface. Use with caution 
> in scripts./
>
> /libxcb-xinerama0/focal,now 1.14-2 amd64 [installed]
> /
> /~# /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 0x00007f020c8a9740 (most recent call first):/
> /  File 
> "/home/apps/chimerax-1.2.5-rc-2021.05.24/lib/python3.8/site-packages/chimerax/ui/gui.py", 
> line 157 in __init__/
> /  File 
> "/home/apps/chimerax-1.2.5-rc-2021.05.24/lib/python3.8/site-packages/ChimeraX_main.py", 
> line 577 in init/
> /  File 
> "/home/apps/chimerax-1.2.5-rc-2021.05.24/lib/python3.8/site-packages/ChimeraX_main.py", 
> line 1015 in <module>/
> /  File 
> "/home/apps/chimerax-1.2.5-rc-2021.05.24/lib/python3.8/runpy.py", line 
> 87 in _run_code/
> /  File 
> "/home/apps/chimerax-1.2.5-rc-2021.05.24/lib/python3.8/runpy.py", line 
> 194 in _run_module_as_main/
> /Aborted (core dumped)/
>
>
> Could you help us resolve this issue?
>
> Many thanks!
>
> Best,
> Vanessa
>
>
> On Tue, Aug 3, 2021 at 8:11 PM Tom Goddard <goddard at sonic.net 
> <mailto:goddard at sonic.net>> wrote:
>
>     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
>     <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 at cgl.ucsf.edu
>>     <mailto:chimerax-users at cgl.ucsf.edu>> wrote:
>>
>>     Hi Vanessa,
>>     Please send ChimeraX questions to chimerax-users at cgl.ucsf.edu
>>     <mailto:chimerax-users at 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 at mail.tau.ac.il <mailto:vanessaroy at 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
>>
>>
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>
>
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