Hello, 

First of all, I want to clarify that I am a novice ( and that my English is 
not very good), hence my questions ;-) 

I am trying to install Spyder on Debian for multi-user use. I am trying to 
do this installation automatically when the machine starts (before logging 
in, rc.local). 

For this I use the standalone installers for Linux installation script. 
(https://github.com/spyder-ide/spyder/releases/latest/download/Spyder-Linux-x86_64.sh)
 

My problem is in the execution of post_install.sh, indeed, I get the error: 

unable to init server: could not connect: connection refused 
(gtk-launch:15139): 
Gtk-WARNING: cannot open display 
ERROR: executing post_install.sh failed 

Spyder is still installed but when I want to launch it with a user account 
of the PC, it does not work well (very slow launch, several minutes or no 
launch at all). 

On the other hand, if I do the installation (by launching the installation 
script) from my administrator account connected to the graphical interface, 
everything goes well and other users can use Spyder without problem. 

I think I understood that the problem comes from an installation problem 
outside the graphical interface, but does anyone have an idea of ​​how to 
get around the problem and allow the installation of Spyder when starting 
the PC? 

Thank you for your help. 

Have a nice day.

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