[X2Go-User] X applications fail after su - on x2go connection

[Stefan Baur]

Am 11.07.2016 um 15:15 schrieb webe3vt at aim.com:
> When I am connected to a Debian server through x2go, my X applications
> work.  When I su - user2 then try any X application they don't work. 
> For example emacs will start in terminal mode and java applications give
> errors such as
> java.lang.InternalError: Can't connect to X11 window server using ':52'
> as the value of the DISPLAY variable
> 
> When I echo $DISPLAY before the su -, :52 is the correct display.
> 
> I have several other machines that do not have this problem.  How do I
> fix it so that X works through x2go after su -.

There used to be a command "sux" that would allow this, but it's been
removed from Debian - https://packages.debian.org/search?keywords=sux

Maybe you'll find some pointers here:
https://en.wikipedia.org/wiki/X_Window_authorization#Cookie-based_access

Kind Regards,
Stefan Baur


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