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Full Discussion: X11 and "Cannot Open Display" errors
Operating Systems Solaris X11 and "Cannot Open Display" errors Post 302497930 by bluescreen on Friday 18th of February 2011 12:02:51 PM
Old 02-18-2011
Lightbulb X11 and "Cannot Open Display" errors
Greetings Forumers!

I'm posting a solution to an Issue I ran into this week: Getting applications to display on another through X11 and SSH. I have run into this issue many years ago and finally found my notes. Some of you may already know the answer to this issue but it took me a while to resolve it for myself.

Scenerio: both systems running Solaris 10u4 or greater, remote system=SPARC(M5000) and my workstation running x86(Ultra24).

I was merely trying to get xclock to display on my workstation from a remote system to test that x11 was working. I ran "xhost +remotehost" on my system before I started an ssh session to the remote system. I set the DISPLAY var and ran xclock. This failed repeatedly with "Cannot Open Display" errors. I tried changing the DISPLAY var with variations of "mysystem:0" and "mysystem:0.0" and "mysystem:1", etc., etc. Long story short: nothing worked.

The resolution that worked was to modify the "tcplisten" option in the "application/x11/x11-server" service on my system to "true":
Code:
mysystem# svccfg -s application/x11/x11-server
svc:/application/x11/x11-server> listprop options/*
options/default_depth        integer  24
options/server               astring  /usr/X11/bin/Xorg
options/server_args          astring
options/stability            astring  Evolving
options/value_authorization  astring  solaris.smf.manage.x11
options/tcp_listen           boolean  false
svc:/application/x11/x11-server> setprop options/tcp_listen=true
svc:/application/x11/x11-server> listprop options/*
options/default_depth        integer  24
options/server               astring  /usr/X11/bin/Xorg
options/server_args          astring
options/stability            astring  Evolving
options/value_authorization  astring  solaris.smf.manage.x11
options/tcp_listen           boolean  true
svc:/application/x11/x11-server> exit
mysystem#

After setting this I was able to get xclock to display on my system.


HTH
 

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LEARN ABOUT SUSE

libgdk-x11-2.0

libgdk-x11-2.0.3(3)					 Introduction to Library Functions				       libgdk-x11-2.0.3(3)

NAME

       libgdk-x11-2.0 - GTK+ Drawing Kit API

DESCRIPTION

       The  libgdk-x11-2.0  library  is  an  implementation of the GTK+ drawing kit for the X11 windowing system. It is used by GTK+ for low-level
       drawing operations. Most applications will not use GDK directly, but will use GTK+ components (see libgtk-x11-2.0(3)).

       To access the API documentation, you must install the developer version of the package.

FILES

       The following files are used by this application:

       /usr/lib/libgdk-x11-2.0.GTK+ Drawing Kit API shared library

       /usr/share/gtk-doc/html Location of developer documentation

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWgnome-base-libs  SUNWg-  |
       |			     |nome-base-libs-64 	   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |External			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libgdk_pixbuf-2.0(3), gdk-pixbuf-csource(3), libglib-2.0(3), libgobject-2.0(3), libgtk-x11-2.0(3), X11(5)

NOTES

       Written by Brian Cameron, Sun Microsystems Inc., 2003, 2004.

SunOS 5.10							    31 Aug 2004 					       libgdk-x11-2.0.3(3)
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