Re: dbus-launch --exit-with-session fails when run from .startxwinrc

2012-04-25 Thread Jon TURNEY
On 24/04/2012 14:50, Ken Brown wrote:
 On 4/16/2012 9:50 AM, Ken Brown wrote:
 On 4/16/2012 9:44 AM, Ken Brown wrote:
 The following problem occurs on my 64-bit Windows 7 system but not on my
 XP system.

 I start the X server using the Start Menu shortcut [modified to add
 -emulate3buttons] and a .startxwinrc with the following contents:

 eval `dbus-launch --sh-syntax --exit-with-session`
 xterm

 Running ps in the resulting xterm window shows no dbus-launch or
 dbus-daemon process. But I can give the same dbus-launch command in the
 xterm window, and the processes start as expected. I'm attaching
 cygcheck output and the XWin log.

 My hope in reporting this is that the problem I'm seeing (and the
 difference between XP and Win7) is somehow related to the emacs problem
 I've been trying to solve:

 http://cygwin.com/ml/cygwin-xfree/2012-04/msg00048.html

 Ken

 P.S. You'll see in the cygcheck output that I'm running a Cygwin
 snapshot; but nothing changes if I revert to cygwin-1.7.13-1.

 I forgot to say that if I remove --exit-with-session from the command
 line in my .startxwinrc, then a dbus-daemon process does start.
 
 I tried modifying the X server shortcut to read
 
 C:\cygwin\bin\run.exe /usr/bin/bash.exe -l -c '/usr/bin/startxwin.exe
 /var/log/xwin/startxwin.log 21'
 
 as suggested in a different thread, but that provides no information. The
 resulting startxwin.log is virtually identical (with minor differences) to
 XWin.0.log.
 
 In particular, there's no indication of what's happening when .startxwinrc is
 processed.

There's no output because ~/.startxwinrc generates no output.

 For starters, it would really be helpful if someone could try to reproduce my
 problem on a 64-bit Windows 7 system.  At the moment, I don't even know if
 there is a bug somewhere or simply a problem with my own system.  Here's the
 recipe:
 
 1. Create a .startxwinrc file with the following contents:
 
 eval `dbus-launch --sh-syntax --exit-with-session`
 xterm
 
 2. Start the X server using the Start Menu shortcut.
 
 3. In the resulting xterm window, give the ps command.  If things are
 working right, the output from ps should show a dbus-launch process and a
 dbus-daemon process.
 
 These processes do appear on my XP system but not on my Windows 7 system.

FWIW, it works on XP for me as well.

I tried with the following ~/.startxwinrc:

eval `dbus-launch --sh-syntax --exit-with-session | tee /dev/stderr`
xterm

... which at least lets you see the pid of the dbus-daemon that is started.

I'm not sure if --exit-with-session is correct with startxwin, since the
startxwin process will not linger after it has started ~/.startxwinrc, and I
don't know if stdin will remain open after it (and the process tree above it
waiting for it) exits.  I have this vague recollection that 'run' has to do
different things on XP and W7, which might account for the different behaviour?

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: dbus-launch --exit-with-session fails when run from .startxwinrc

2012-04-25 Thread Ken Brown

On 4/25/2012 12:21 PM, Jon TURNEY wrote:

On 24/04/2012 14:50, Ken Brown wrote:

On 4/16/2012 9:50 AM, Ken Brown wrote:

On 4/16/2012 9:44 AM, Ken Brown wrote:

The following problem occurs on my 64-bit Windows 7 system but not on my
XP system.

I start the X server using the Start Menu shortcut [modified to add
-emulate3buttons] and a .startxwinrc with the following contents:

eval `dbus-launch --sh-syntax --exit-with-session`
xterm

Running ps in the resulting xterm window shows no dbus-launch or
dbus-daemon process. But I can give the same dbus-launch command in the
xterm window, and the processes start as expected. I'm attaching
cygcheck output and the XWin log.

My hope in reporting this is that the problem I'm seeing (and the
difference between XP and Win7) is somehow related to the emacs problem
I've been trying to solve:

http://cygwin.com/ml/cygwin-xfree/2012-04/msg00048.html

Ken

P.S. You'll see in the cygcheck output that I'm running a Cygwin
snapshot; but nothing changes if I revert to cygwin-1.7.13-1.


I forgot to say that if I remove --exit-with-session from the command
line in my .startxwinrc, then a dbus-daemon process does start.


I tried modifying the X server shortcut to read

C:\cygwin\bin\run.exe /usr/bin/bash.exe -l -c '/usr/bin/startxwin.exe

/var/log/xwin/startxwin.log 21'


as suggested in a different thread, but that provides no information. The
resulting startxwin.log is virtually identical (with minor differences) to
XWin.0.log.

In particular, there's no indication of what's happening when .startxwinrc is
processed.


There's no output because ~/.startxwinrc generates no output.


For starters, it would really be helpful if someone could try to reproduce my
problem on a 64-bit Windows 7 system.  At the moment, I don't even know if
there is a bug somewhere or simply a problem with my own system.  Here's the
recipe:

1. Create a .startxwinrc file with the following contents:

eval `dbus-launch --sh-syntax --exit-with-session`
xterm

2. Start the X server using the Start Menu shortcut.

3. In the resulting xterm window, give the ps command.  If things are
working right, the output from ps should show a dbus-launch process and a
dbus-daemon process.

These processes do appear on my XP system but not on my Windows 7 system.


FWIW, it works on XP for me as well.

I tried with the following ~/.startxwinrc:

eval `dbus-launch --sh-syntax --exit-with-session | tee /dev/stderr`
xterm

... which at least lets you see the pid of the dbus-daemon that is started.

I'm not sure if --exit-with-session is correct with startxwin, since the
startxwin process will not linger after it has started ~/.startxwinrc, and I
don't know if stdin will remain open after it (and the process tree above it
waiting for it) exits.  I have this vague recollection that 'run' has to do
different things on XP and W7, which might account for the different behaviour?


Ah, that must be it.  On XP, presumably because of the way 'run' 
behaves, the sh process that runs .startxwinrc hangs around, so the dbus 
processes keep running.  If I run startxwin from a terminal instead of 
via the shortcut (i.e., without using 'run'), I get the same behavior on 
XP as on W7.


Thanks.

Ken


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Re: dbus-launch --exit-with-session fails when run from .startxwinrc

2012-04-24 Thread Ken Brown

On 4/16/2012 9:50 AM, Ken Brown wrote:

On 4/16/2012 9:44 AM, Ken Brown wrote:

The following problem occurs on my 64-bit Windows 7 system but not on my
XP system.

I start the X server using the Start Menu shortcut [modified to add
-emulate3buttons] and a .startxwinrc with the following contents:

eval `dbus-launch --sh-syntax --exit-with-session`
xterm

Running ps in the resulting xterm window shows no dbus-launch or
dbus-daemon process. But I can give the same dbus-launch command in the
xterm window, and the processes start as expected. I'm attaching
cygcheck output and the XWin log.

My hope in reporting this is that the problem I'm seeing (and the
difference between XP and Win7) is somehow related to the emacs problem
I've been trying to solve:

http://cygwin.com/ml/cygwin-xfree/2012-04/msg00048.html

Ken

P.S. You'll see in the cygcheck output that I'm running a Cygwin
snapshot; but nothing changes if I revert to cygwin-1.7.13-1.


I forgot to say that if I remove --exit-with-session from the command
line in my .startxwinrc, then a dbus-daemon process does start.


I tried modifying the X server shortcut to read

C:\cygwin\bin\run.exe /usr/bin/bash.exe -l -c '/usr/bin/startxwin.exe
 /var/log/xwin/startxwin.log 21'

as suggested in a different thread, but that provides no information. 
The resulting startxwin.log is virtually identical (with minor 
differences) to XWin.0.log.


In particular, there's no indication of what's happening when 
.startxwinrc is processed.


For starters, it would really be helpful if someone could try to 
reproduce my problem on a 64-bit Windows 7 system.  At the moment, I 
don't even know if there is a bug somewhere or simply a problem with my 
own system.  Here's the recipe:


1. Create a .startxwinrc file with the following contents:

eval `dbus-launch --sh-syntax --exit-with-session`
xterm

2. Start the X server using the Start Menu shortcut.

3. In the resulting xterm window, give the ps command.  If things are 
working right, the output from ps should show a dbus-launch process and 
a dbus-daemon process.


These processes do appear on my XP system but not on my Windows 7 system.

Ken

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Re: dbus-launch --exit-with-session fails when run from .startxwinrc

2012-04-16 Thread Ken Brown

On 4/16/2012 9:44 AM, Ken Brown wrote:

The following problem occurs on my 64-bit Windows 7 system but not on my
XP system.

I start the X server using the Start Menu shortcut [modified to add
-emulate3buttons] and a .startxwinrc with the following contents:

eval `dbus-launch --sh-syntax --exit-with-session`
xterm

Running ps in the resulting xterm window shows no dbus-launch or
dbus-daemon process. But I can give the same dbus-launch command in the
xterm window, and the processes start as expected. I'm attaching
cygcheck output and the XWin log.

My hope in reporting this is that the problem I'm seeing (and the
difference between XP and Win7) is somehow related to the emacs problem
I've been trying to solve:

http://cygwin.com/ml/cygwin-xfree/2012-04/msg00048.html

Ken

P.S. You'll see in the cygcheck output that I'm running a Cygwin
snapshot; but nothing changes if I revert to cygwin-1.7.13-1.


I forgot to say that if I remove --exit-with-session from the command 
line in my .startxwinrc, then a dbus-daemon process does start.


Ken


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Documentation: http://x.cygwin.com/docs/
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