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Message-ID: <20130803175444.3628@binki>
Date: Sat, 03 Aug 2013 17:54:44 +0900
From: wynfield AT gmail DOT com
To: <cygwin AT cygwin DOT com>
cc:
Subject: checkX problem or misunderstanding


Re: checkX

  $ checkX --version
    run2 0.4.2

checkX doesn't work as I understand the description below:

"DESCRIPTION
       Determines  if  X is installed, Xserver is running on specified DISPLAY
       and will accept clients. Returns 0 if yes, nonzero otherwise"


Environment / Procedure to duplicate the error:

 - I have an X11 server running, started in pty0, where I will test checkX 

 - In this pty0, I start an X11 server, which from the xinitrc starts up another mintty
    terminal, pty1 with Display environment variable set to :0

 - Testing checkX in pty1 (which has DISPLAY set) returns a 0 or successful result.
   checkX :0  --> returns 0
   
 - Moving back to pty0 and running the same command with the same argument gives:
   checkX :0  --> return 1 and error condition or no server available.


However, if I simply manually set DISPLAY=:0 in pty0   X11 clients will run.

-  export DISPLAY=127.0.0.1:0
-  checkX :0  --> Nnw reports an o.k. this server is useable.


If one relied on checkX the runing server would be missed.  It is doing nothing that a check if DISPLAY var is set or not andn then possible testing it.  It should has used the value :0 I sent it and do some X11 stuff I am not aware of.


I intented on interating through files in /tmp/.X11-unix/* looking for an active X11 server, but checkX doesn't seem to fit the bill.

Do I have to just manually set DISPLAY and try to run a program that relies on it, since checkX doesn't work by telling me a server can be use, when it can be.


------------

Cheers

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