topic Re: DISPLAY, TERM XTERM variables problem in Operating System - HP-UX

DISPLAY, TERM XTERM variables problem

Burhan Koni — Thu, 08 Jan 2004 06:33:36 GMT

Dear all
I have ORACLE APPLICATION 11i installed on HP-UX 11i. I have problem in diplaying reports in pdf or html format. one of the diagnostic commands:
# xterm -display Fin02.ora:0.0
Error: Can't open display: Fin02.ora:0.0
Error: Couldn't find per display information

# xdpyinfo
xdpyinfo: unable to open display "Fin02.ora:0.0".
#

also the value of TERM is dtterm from x-manager, and ansi from telnet session.

how to fix this ???

Thanks
Burhan

Re: DISPLAY, TERM XTERM variables problem

Umapathy S — Thu, 08 Jan 2004 06:40:53 GMT

The TERM values are correct for dtterm and telnet sessions.

Can you try first exporting the DISPLAY and then opening xterm.

Error: Couldn't find per display information

This error usually occurs when the X11 is not able to point the local display itself.

HTH,
Umapathy

Re: DISPLAY, TERM XTERM variables problem

Christian Gebhardt — Thu, 08 Jan 2004 06:42:14 GMT

Hi

- Is Fin02.ora your workstation or the server --> You have to set the display to your workstation
- Does the server know the name of your workstation --> try IP-Adress
- Is a X-Server running on your Workstation ?

Chris

Re: DISPLAY, TERM XTERM variables problem

Burhan Koni — Thu, 08 Jan 2004 07:48:07 GMT

Fin02.ora is the server

Re: DISPLAY, TERM XTERM variables problem

Umapathy S — Thu, 08 Jan 2004 07:53:33 GMT

Did you check as per Chris reply?
Is there a Xserver running in your workstation/windows.

Are you trying to connect to the server using an emulator or workstation.

Mostly this must be an workstation. Login to Fin02 and type xhost + (which allows the access)

But as I said before the local display itself is not proper.

HTH,
Umapathy

Re: DISPLAY, TERM XTERM variables problem

Elmar P. Kolkman — Thu, 08 Jan 2004 08:45:09 GMT

xterm is an X-windows application. It needs to connect to an Xserver to perform. It uses the DISPLAY environment variable or -display argument to determine where that X-server runs. The part before the colon (Fin02.ora in your case) is the IP address of the Xserver process, the part behind the colon (0.0 in your case) determines the port number to be used.

An Xserver can be on HP-UX if you have a graphical console or on a PC running Linux with programs like XFree86 or Windows with Reflexion or something like that.

Now the error code you get means that xterm can not open a connection to the Xserver. So now there can be two problems: you have an authorisation problem or you don't have an Xserver at all on your server.

Before going further, check if you have a graphical console that should support X... or that you should point the display to your workstation.

Re: DISPLAY, TERM XTERM variables problem

Michael Schulte zur Sur — Thu, 08 Jan 2004 08:53:56 GMT

Hi,

as Christian points out, where do you need the graphic output, on a pc or on a graphics console? Wherever this is, a Xserver must run there and the display options must be set for that machine. Check with xhost the hosts with access.

greetings,

Michael

Re: DISPLAY, TERM XTERM variables problem

Bill Hassell — Thu, 08 Jan 2004 09:32:01 GMT

The machine Fin02.ora must be running an Xwindow emulator. The concept of server and client is different for Xwindows. If you type a command such as xterm on a particular computer, then that computer is the client in Xwindows. The -display Fin02.ora:0.0 information is telling xterm to find an Xwindow display server on Fin02.ora which must be a graphics workstation or an Xterminal or a PC running an Xwindow emulator.

Is Fin02.ora a graphics computer with Xwindow capability?

Re: DISPLAY, TERM XTERM variables problem

Steven E. Protter — Thu, 08 Jan 2004 09:36:45 GMT

Add this line to .profile or /etc/profile

DISPLAY=$(who -m -u | awk '{print $8}'):0.0
export DISPLAY

This will insure that the DISPLAY variable won't be a problem and standard X Windows Emulator software will work.

SEP

Re: DISPLAY, TERM XTERM variables problem

matteo_4 — Thu, 08 Jan 2004 09:38:25 GMT

Hi burhan,

i think you have to try to export the display....

try

> xhost +

> setenv DISPLAY Fin02.ora:0.0

bye

Re: DISPLAY, TERM XTERM variables problem

Burhan Koni — Sat, 10 Jan 2004 02:31:31 GMT

Dear all
first of all I connect to the server(Fin02.ora) by (x-manager) x-window from my PC this mean that X-server is running on the server (right?) . I assigned the DISPLAY the value Fin02.ora:0.0 .
from x-manager I checked xclock and the clock displayed successfully.
also I executed xhost +
but xterm and xdpinfo returned error.

regards

Re: DISPLAY, TERM XTERM variables problem

Michael Schulte zur Sur — Sat, 10 Jan 2004 05:51:59 GMT

Hi,

I connect to the server(Fin02.ora) by (x-manager) x-window from my PC this mean that X-server is running on the server (right?) .

No, that's not right.

assigned the DISPLAY the value Fin02.ora:0.0 . From x-manager I checked xclock and the clock displayed successfully.

I believe, that it is displayed, but where? On the console of Fin02, right?

Let me try to explain the subject as I understand it. On a pc you have a programme, which calls graphic routines from windows, which displays it via the graphics card. So windows is in this case the Xwindows server. When you run xclock and want to have the output on your pc then you will have to run a Xwindows server on your pc, which does the graphics output, which means, whereever the graphics output, to that you must point with your DISPLAY variable.

Any corrections to this by anyone?

Michael

Re: DISPLAY, TERM XTERM variables problem

Bill Hassell — Sat, 10 Jan 2004 12:57:50 GMT

The Xserver (and hence, the DISPLAY value) must point to your PC, not to the computer running xterm. In Xwindows, the server is where the display is located. You tell the machine (xterm) where your PC is located with DISPLAY=PC_addr:0.0

Re: DISPLAY, TERM XTERM variables problem

Burhan Koni — Sun, 11 Jan 2004 01:57:25 GMT

Thank you all for explaination.

Regards