-----Original Message----- From: Stefan Baur <[email protected]> To: x2go-user <[email protected]> Sent: Mon, Jul 11, 2016 10:58 am Subject: Re: [X2Go-User] X applications fail after su - on x2go connection Am 11.07.2016 um 15:15 schrieb [email protected]: > 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 -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 _______________________________________________ x2go-user mailing list [email protected] http://lists.x2go.org/listinfo/x2go-user Thank you. I used to use sux until Debian took it away. You triggered a memory of what I did to make X work after sux was taken away. I add this to /etc/pam.d/su session optional pam_xauth.so I found the information in the following links when I was looking for an sux replacement. https://askubuntu.com/questions/428284/what-is-a-good-alternative-to-the-sux-command https://wiki.archlinux.org/index.php/Running_X_apps_as_root When I did it on the machine that was not working, it allowed X to start working after su. Brent Elmer
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