Xlib: connection to ":0.0" refused by server

leg_of_pinguin · 04-28-2005, 05:06 PM

Code:

Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

/opt/openoffice/program/spadmin.bin X11 error: Can't open display: :0.0
   Set DISPLAY environment variable, use -display option
   or check permissions of your X-Server
   (See "man X" resp. "man xhost" for details)

What does it mean?
Sorry for a newbie question...

Matir · 04-28-2005, 05:11 PM

It means the program you are trying to use has been denied access to the display. Generally, this means the program is being run as a user other than that running the X server.

What, exactly, were/are you trying to do?

leg_of_pinguin · 04-28-2005, 05:17 PM

Thanks for help

I tried to add more fonts to OpenOffice through some recommended "spadmin" program (taken from OpenOffice help pages).

It seems it should run some GUI

Matir · 04-28-2005, 05:27 PM

I'm not familiar with spadmin, but it shouldn't matter too much. Are you running spadmin as root, by any chance?

leg_of_pinguin · 04-28-2005, 05:52 PM

Yes, I was running it as root.

I see 2 ways of investigating this problem
1) "display" command
2) x-server permissions

as was given in the error message.

Frankly, I read the "man display" with zero results. What is the simplest example of using this command?

leg_of_pinguin · 04-29-2005, 08:30 AM

As I see, permission is not a problem because I worked under root privileges.
$DISPLAY variable has normal value :0.0

We see this error message in many situations, when we try to open GUI using command line shell.
For some applications (like xman) it doesn't happen - the GUI is opened correctly.

We use knoppix 3.8.1 install of Debian, KDE

Please advise how to fix this problem.

Matir · 04-29-2005, 08:38 AM

Actually, permissions are the culprit.

Generally, only the user the X server is running as can run commands that display on that X server. Even root cannot do it without special permissions. You can use "xhost +localhost" to allow any program on localhost to display to your X server.

leg_of_pinguin · 04-29-2005, 08:56 AM

Thanks, 'xhost +' solves this.