This looks like a pretty comprehensive how-to.
Anyone documenting this on the Wiki? Xavier? Niels. > From: Xavier Cremaschi <omega.xav...@gmail.com> > Subject: Re: [SHR] X forwarding: export DISPLAY? > To: community@lists.openmoko.org > Date: Tuesday, August 17, 2010, 4:10 PM > Basically, you need > > a computer with : > - a working X server (mainly Xorg) > - a working ssh client with -X option (mainly > openssh-client) > (Note for working X server on cygwin : be sure to launch > xterm, not the > basic tty) > > a Freerunner with : > - a working X client (the app you want to launch, tangogps > for example) > - a working ssh server with "X11Forwarding yes" in its > config (for > openssh-server it's in /etc/ssh/sshd_config, be sure to > restart ssh > server after any modification to this file) > > > Then give us any error you can see while doing your ssh > -X. > > On the freerunner, and after a ssh -X, $DISPLAY should NOT > be : > localhost:0 > because it's the X server of the freerunner, but it should > be something > like : > localhost:10.0 > which is where ssh server listen to transmit your display > data to ssh > client. > > > Xavier. > > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > --Doorgestuurd bericht in de bijlage-- From: omega.xav...@gmail.com To: community@lists.openmoko.org Date: Tue, 17 Aug 2010 16:27:37 +0200 Subject: Re: [SHR] X forwarding: export DISPLAY? To continue : if you want to do it 'old school' without ssh -X doing the job for you, you need to authorize your X server to accept distant X clients To authorize X server of "here" to display application running on "faraway", you need to do (here$ is the prompt) : here$ xhost +faraway Then you need to log yourself on faraway (ssh without -X nor -Y, rsh, telnet, xterm on freerunner...) and launch your application with a good $DISPLAY faraway$ DISPLAY=here:0 my_application If it does not work : - either "faraway" doesn't allow the X client to go out (firewall ?) - or "here" has its X server running with "-nolisten tcp" and therefore refuses any connection If you have "-nolisten tcp" (check with ps), you can remove it but it depends on how you launch your X server : - if you use startx, check your /etc/X11/xinit/xserverrc (or ~/.xserverrc) - if you use gdm, launch gdmconfig and check security options) - if you use kdm or xdm, I don't know :S If you want to control the freerunner desktop from your PC, you could use vnc. On the freerunner you start x11vnc : faraway$ x11vnc but NOT from a ssh -X, you don't want any redirection here. On your pc you start your vnc client : here$ vncviewer faraway:0 Xavier. PS : use ip addresses instead of names like here and faraway --Doorgestuurd bericht in de bijlage-- From: omega.xav...@gmail.com To: community@lists.openmoko.org Date: Tue, 17 Aug 2010 16:28:54 +0200 Subject: Re: [SHR] X forwarding: export DISPLAY? I forgot an important thing : network must work of course (first thing to check) ;)
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