Re: startx with different displays

[Marc Girod <marc dot girod at gmail dot com>]

Hi,

I try a fresh start, not being clear about my complete failure to get any
reply.

I use XWin and GNU emacs (X11 version).
My startup script is:

/usr/bin/startx /usr/bin/emacs -g 90x37+150+0 -- /usr/bin/X :0 -multiwindow
-clipboard

This used to work for a few years, but recently started to loop and fail
(plus 2 glitches).
First the loop effect: after starting the server process (transcript not
displayed in the first
occurrence), which ends in:

winMultiWindowXMsgProc - XOpenDisplay () returned and successfully opened
the display.

...the transcript gets into:

waiting for X server to begin accepting connections .
..
..

This eventually times out, unless sometimes gets a reply.
However, recently, I have started to try different displays in parallel,
e.g.:

bash --login -c "/usr/bin/startx /usr/bin/emacs -g 90x37+150+0 -- /usr/bin/X
:2 -multiwindow -clipboard"

I have started to use higher and higher numbers.
The effect is that one of then (today: 5) will unblock all the others, so 
that I got today 5 instances of GNU emacs, all reported a DISPLAY of ":5".

The two glitches:
Before starting the server, I get:

/usr/bin/startx: line 47:  2188 Segmentation fault      (core dumped) expr
"$1" : ':[0-9][0-9]*$' > /dev/null 2>&1

At connecting, the first line is:

xinit: XFree86_VT property unexpectedly has 0 items instead of 1



I notice that I have an old startx~, which helps me to see what has changed 
in recent versions of startx:

bin> diff startx~ startx
34a35,43
> # Automatically determine an unused $DISPLAY
> d=0
> while true ; do
>     [ -e /tmp/.X$d-lock ] || break
>     d=$(($d + 1))
> done
> defaultdisplay=":$d"
> unset d
> 
79c88
<     # if no client arguments either, use rc file instead
---
>     # For compatibility reasons, only use startxrc if there were no client
> command line arguments
92,93d100
< 
<         clientargs=$defaultclientargs
96a104,108
> # if no client arguments, use defaults
> if [ x"$clientargs" = x ]; then
>     clientargs=$defaultclientargs
> fi
> 
101c113
<     # if no server arguments or display either, use defaults
---
>     # For compatibility reasons, only use xserverrc if there were no
> server command line arguments
103d114
< 	# For compatibility reasons, only use xserverrc if there were no server
command line arguments
109,111d119
< 
< 	serverargs=$defaultserverargs
< 	display=$defaultdisplay
114a123,132
> # if no server arguments, use defaults
> if [ x"$serverargs" = x ]; then
>     serverargs=$defaultserverargs
> fi
> 
> # if no display, use default
> if [ x"$display" = x ]; then
>     display=$defaultdisplay
> fi
> 
155a174
>     touch "$xserverauthfile"
bin> ll startx startx~
-rwxr-xr-x 1 emagiro root 4917 Jan 30 03:12 startx
-rwxr-xr-x 1 emagiro root 4540 Aug 22  2011 startx~
bin> ll /tmp/.X*
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:38 /tmp/.X0-lock
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:40 /tmp/.X1-lock
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:42 /tmp/.X2-lock
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:43 /tmp/.X3-lock
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:44 /tmp/.X4-lock
-r--r--r--  1 emagiro EEI-ATusers 11 Apr 23 09:45 /tmp/.X5-lock

/tmp/.X11-unix:
total 38
drwxrwxrwt+ 1 root    root        0 Apr 23 09:45 .
drwxrwxrwt+ 1 emagiro root        0 Apr 23 09:45 ..
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:38 X0
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:40 X1
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:42 X2
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:43 X3
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:44 X4
srwxrwxrwx  1 emagiro EEI-ATusers 0 Apr 23 09:45 X5


I don't attempt here to interpret these facts myself.
I am of course mostly annoyed by the failure to connect to the XWin
server using the first port.
Can anybody shed light on a possible explanation?

I used Gmane and uploaded my cygcheck.out.

Thanks,
Marc http://old.nabble.com/file/p33732045/cygcheck.out cygcheck.out 

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