DISPLAY environment setting...

Michael Frey mfrey at pepper.com
Fri Oct 22 06:28:26 PDT 2004

When I try to use DISPLAY=:0.0, here is the error I get.

root@(none):/# export DISPLAY=:0.0
root@(none):/# xterm
_X11TransSocketINETConnect: Can't get address for (none)
Warning: This program is an suid-root program or is being run by the 
root user.
The full text of the error or warning message cannot be safely formatted
in this environment. You may get a more descriptive message by running 
program as a non-root user or by removing the suid bit on the 
xterm Xt error: Can't open display: %s

Do you know what this means?


On Oct 21, 2004, at 9:07 PM, Glynn Clements wrote:

> Michael Frey wrote:
>> Can someone explain to me a problem I am having.
>> After I launch my X server and set my DISPLAY=:0.0  I am unable to
>> launch any X programs (xterm, etc...)
>> However when I set my DISPLAY=, I am able to launch 
>> programs
>> just fine.  What would cause the DISPLAY=:0.0 not to work?  This works
>> just fine for example on a Redhat box.
> A $DISPLAY setting of means that clients will connect to
> TCP port 6000 on, whereas a setting of :0 means that they
> will connect to the Unix-domain socket /tmp/.X11-unix/X0.
> If the former works, but the latter doesn't, possible explanations
> include the server not creating or listening on the Unix-domain
> socket, or the client being unable to connect to it (e.g. due to
> filesystem permissions or /tmp using a tmpfs which makes files
> invisible to users other than their owner).
> Also, on some OSes, transports other than Unix-domain sockets (e.g.
> various types of STREAMS pipes) may be used for local displays.
> Do you get any error messages from the client when trying to connect
> with DISPLAY=:0.0? They may provide a clue as to why the connection
> fails.
> -- 
> Glynn Clements <glynn.clements at virgin.net>
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