topic Re: Unable to Grahpic interface in Operating System - Linux

Unable to Grahpic interface

Binu_5 — Mon, 18 Jul 2005 22:07:44 GMT

Hi

I have a problem in starting the graphic interface IN REDHAT LINUX 9
My requiremnet is to get the same grhic display in the remote

Steps I have done

1)Login to the remote linux machine using
telnet
2)Exported the display with
export DISPLAY=192.8.9.10:0.0
3)Startx

But the following error flases
root@wiplx15 root]# startx
Using authority file /root/.Xauthority
Writing authority file /root/.Xauthority
Using authority file /root/.Xauthority
Writing authority file /root/.Xauthority
_XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running

Fatal server error:
Cannot establish any listening sockets - Make sure an X server isn't already running

If you encounter a server crash, please report the problem by filing a bug
report in the XFree86.org bugzilla at http://bugs.xfree86.org and/or Red Hat
bugzilla at http://bugzilla.redhat.com/bugzilla. When filing your report, it
is very important that you explain your problem in as much detail as possible,
and include a complete description on how to reproduce the problem. After
submitting the bug report, attach the following files as uncompressed
individual file attachments using the bugzilla file attachment feature:
- X server log file: /var/log/XFree86.0.log
- Kernel log file: /var/log/messages

Xlib: connection to ":0.0" refused by server
Xlib: Invalid MIT-MAGIC-COOKIE-1 key
giving up.
xinit: unable to connect to X server
xinit: No such process (errno 3): Server error.

Can anybody help me in this matter

Thanks
Binu

Re: Unable to Grahpic interface

Gopi Sekar — Mon, 18 Jul 2005 22:14:44 GMT

I believe there is one X server already running in the REMOTE machine which occupies the 0 display. You have to start X server in 1st display, try this:

startx -- :1

which should launch X server in first display, let us know how it goes.

Regards,
Gopi

Re: Unable to Grahpic interface

Binu_5 — Mon, 18 Jul 2005 23:04:49 GMT

Hi Gopi

This time error is different

root@wiplx15 root]# export DISPLAY=192.6.82.224:0.0
[root@wiplx15 root]# startx -- :1
Using authority file /root/.Xauthority
Writing authority file /root/.Xauthority
Using authority file /root/.Xauthority
Writing authority file /root/.Xauthority

XFree86 Version 4.3.0 (Red Hat Linux 9 release: 4.3.0-2.90.43)
Release Date: 15 August 2003
X Protocol Version 11, Revision 0, Release 6.6
Build Operating System: Linux 2.4.21-2.ELsmp i686 [ELF]
Build Date: 07 November 2003
Build Host: porky.devel.redhat.com

Before reporting any problems, please make sure you are using the most
recent XFree86 packages available from Red Hat by checking for updates
at http://rhn.redhat.com/errata or by using the Red Hat Network up2date
tool. If you still encounter problems, please file bug reports in the
XFree86.org bugzilla at http://bugs.xfree86.org and/or Red Hat
bugzilla at http://bugzilla.redhat.com

Module Loader present
OS Kernel: Linux version 2.4.20-8smp (bhcompile@porky.devel.redhat.com) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 SMP Thu Mar 13 17:45:54 EST 2003 PF
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.1.log", Time: Tue Jul 19 06:00:41 2005
(==) Using config file: "/etc/X11/XF86Config"

SESSION_MANAGER=local/wiplx15:/tmp/.ICE-unix/6471
AUDIT: Tue Jul 19 06:01:14 2005: 6457 X: client 5 rejected from local host
Gnome-Message: gnome_execute_async_with_env_fds: returning -1
Unable to open desktop file applications:///Office/redhat-word-processor.desktop for panel launcher: Error reading file 'applications:///Office/redhat-word-processor.desktop': File not found
Unable to open desktop file applications:///Office/redhat-presentations.desktop for panel launcher: Error reading file 'applications:///Office/redhat-presentations.desktop': File not found
Unable to open desktop file applications:///Office/redhat-spreadsheet.desktop for panel launcher: Error reading file 'applications:///Office/redhat-spreadsheet.desktop': File not found

Thanks
Binu

Re: Unable to Grahpic interface

Donald Kok — Mon, 18 Jul 2005 23:07:50 GMT

hi,
on the server: xhost +
on the display machine: X -once -query :1

the xhost command gives permission for anyone to access the graphics. Of course you like to narrow this down.

The X command makes contact and delivers the graphics to screen 1 (access with ctrl-alt-F8)
greetzz
Donald

Re: Unable to Grahpic interface

Gopi Sekar — Mon, 18 Jul 2005 23:09:20 GMT

I think the local machine (from where you start the telnet client) is not configured to allow access from the remote machine. Before doing telnet to the remote machine add the remote machine entry as follows:

xhost +remotemachineip
you can also use remote machine name instead of ip address. then do telnet and startx and this time you should be able to get the X. otherwise post the logs

Regards,
Gopi

Re: Unable to Grahpic interface

Binu_5 — Mon, 18 Jul 2005 23:21:07 GMT

Hi

Where is this .xhost file located

is it default or shall I make one

Is it .xhosts or .xhost

Thanks
Binu

Re: Unable to Grahpic interface

Stuart Browne — Mon, 18 Jul 2005 23:26:03 GMT

Ok, I have to askt his question.

Are you trying to start a graphical interface on your local machine (the one you telnet'd from), or the server (the one you telnet'd too) ?

If you are trying to start a graphical session on your local machine, this is not the way to do it. You need to start he XServer on your local machine, locally.

If you are trying to start a graphical session on the remote server, then why are you setting DISPLAY?

If you just want to open an XClient on your local XServer, then why are you using 'startx' ?

Re: Unable to Grahpic interface

Donald Kok — Mon, 18 Jul 2005 23:26:47 GMT

xhost is a command.

Re: Unable to Grahpic interface

Gopi Sekar — Mon, 18 Jul 2005 23:29:08 GMT

there are .xhosts file i heard of (may be somebody else can shed light on this). xhost i referred is a program which gives permission for remote X server to use local display.

exact command line is: /usr/X11R6/bin/xhost +hostname

Regards,
Gopi

Re: Unable to Grahpic interface

Binu_5 — Mon, 18 Jul 2005 23:45:27 GMT

Hi

Hope I am clear for this question

Are you trying to start a graphical interface on your local machine (the one you telnet'd from), or the server (the one you telnet'd too) ?

1)Iam giving a telnet from a windos machine to a linux machine
2)Then exporting the display with the ip address of the windows machine
3)then doing a startx on the linux machine

I should get the graphics interface of teh linux machine right ???

Thanks
Binu

Re: Unable to Grahpic interface

Stuart Browne — Mon, 18 Jul 2005 23:52:32 GMT

Ok. If you want a graphical interface on the Linux box, then don't do the 'export DISPLAY' step (leave it empty).

By the same token, you should probably ensure that there isn't already a GUI running. Use the following to check:

netstat -ntlp | grep 5900

If that returns nothing, then there's no GUI, and you're free to 'startx'.

If you want a GUI to start every time the server starts, then there are better methods (i.e. changing the default INIT level to 5 by modifying '/etc/inittab').

Anyway, try this, and see if you get any errors (you shouldn't).

That being said, if you start the GUI on the console, how are you accessing it? You have direct access don't you?

Re: Unable to Grahpic interface

Gopi Sekar — Mon, 18 Jul 2005 23:53:39 GMT

oops, thats not at all possible. windows does not understand X11 protocols so no display will be available on windows.

you need to run ReflectionX or cygwin which will run on windows server. Make it query the linux server and you should be on.

Regards,
Gopi

Re: Unable to Grahpic interface

Binu_5 — Tue, 19 Jul 2005 00:11:12 GMT

Hi Gopi

Can I run a telnet in command mode and
and run startx ..Is this possible

Thanks
Binu

Re: Unable to Grahpic interface

Stuart Browne — Tue, 19 Jul 2005 00:17:01 GMT

Oops, my apoligies:

netstat -ntlp | grep 6000

5900 is for VNC, and the cool way that the XOrg X implementation can use X/Vnc nativly.

Yes, you can launch the GUI on the Linux box (on the Linux box console) from a telnet session.

You can't launch a GUI on your local PC via a telnet session.

If you get an X implementation for Windows (like Gopi's suggestion, hummingbird reflection, or a Cygwin XFree (or any one of countless other X server implementations for Windows)), you can then launch X applications (clients) from the linux box to display on your PC's X server from a telnet session (after you've done the 'export DISPLAY=' command).

Re: Unable to Grahpic interface

Binu_5 — Tue, 19 Jul 2005 00:56:53 GMT

Hi All

Thanks for the info

Also I have a nis setup here and the home directory is exported from a different system .The problem is I will be able login using root in the grahic console
But if I try to login using the nis user

It used the flash the following error

Please contact system administrator for the following error
Could not lock the file /home/binuv/.gconf-test-locking-file"
this indicated that there is aproblem with your operating system configuration.If you have an nfs -mounted home directory eithere the client or the server may be setup incorrectly ..See the rpc.statd and rpc.locld documenttation .A common cause of this error is that the nfslocl service has been dusabled .The error was no locks available"(errno =37)..

Can anybody through some light on this

Thanks
Binu

Re: Unable to Grahpic interface

Stuart Browne — Tue, 19 Jul 2005 01:06:20 GMT

Ensure that the 'rpc.statd' service is running ('service rstatd status', making sure it doesn't say 'rpc.rstatd is stopped'), and if it is, start it ('service rstatd start'), and ensure it starts at next boot ('chkconfig rstatd on').

Re: Unable to Grahpic interface

Gopi Sekar — Tue, 19 Jul 2005 01:06:21 GMT

this problem might occur if the directory is exported as read only. otherwise the lock file already exists (some other application still using it) so the new instance of the application can not lock that file resulting in this error.

Regards,
Gopi

Re: Unable to Grahpic interface

Binu_5 — Tue, 19 Jul 2005 01:16:35 GMT

Hi

The filesystem is not read only and if
I login as root it works fine with out any problem

Thanks
Binu

Re: Unable to Grahpic interface

Gopi Sekar — Tue, 19 Jul 2005 01:28:40 GMT

Then the problem is the exported file system is owned by some other user id (check ls -l output on the machine where NFS file system is mounted).

try to give same user id that is presented in the server for the client machine also.

The other reason, the particular file which is giving error is owned by another user other than the one who is logging in

Regards,
Gopi