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Re: checkX problem or misunderstanding
- From: "Larry Hall (Cygwin)" <reply-to-list-only-lh at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Sun, 04 Aug 2013 22:24:48 -0400
- Subject: Re: checkX problem or misunderstanding
- References: <20130803175444 dot 3628 at binki> <51FEFA60 dot 2050707 at cygwin dot com> <20130805105021 dot 1776 at binki>
- Reply-to: cygwin at cygwin dot com
On 8/4/2013 9:50 PM, wynfield@gmail.com wrote:
Larry Hall wrote:
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.
Perhaps we're misunderstanding your confusion here. Can you explain what
about Chuck's description of checkX at the link below isn't clear?
<http://cygwin.com/ml/cygwin/2013-08/msg00009.html>
--
Larry
It is clearly written in my message, in fact in imported it from the
checkX documentation. What part of the problem I'm describing is not clear
to you?
"DESCRIPTION
Determines if X is installed, Xserver is running on specified DISPLAY
and will accept clients. Returns 0 if yes, nonzero otherwise""
In fact:
checkX :0 returns a false when, but the X11 server on :0 will accept client
requests.
I guess I'm not clear why you're not using the syntax Chuck recommends in
his message (see the link to it that I included above). He stated you need
to use the '--display' flag. Here's a quote from Chuck in that message:
You have to tell IT where you think the X server is running, and it
willtell you if it can contact a server there. So:
$ checkX --display=127.0.0.1:0.0
[exits with status value 0 or 1]
So, does that syntax work as Chuck described it?
--
Larry
_____________________________________________________________________
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
--
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