X11 session suddenly killed - because of key stroke combination?

[Lars]

Binary package hint: gnome-session-bin

This has hapend the second time for me.

I'm running XFCE from XUbuntu not plain Ubuntu.
gnome-session package is _not_ installed!

My X11 session was killed right after I held down a key combination ([F1 or F4] and [Ctrl or Alt] - don't remember exactly)

The normal X11 session (pstree):

     ├─gdm-binary─┬─gdm-simple-slav─┬─Xorg
     │ │ ├─gdm-session-wor─┬─sh─┬─ssh-agent
     │ │ │ │ ├─xfce4-session─┬─orage
     │ │ │ │ │ ├─xfce4-panel─┬─orageclock
     │ │ │ │ │ │ ├─xfce4-mixer-plu───{xfce4-mixer-pl}
     │ │ │ │ │ │ ├─xfce4-places-pl
     │ │ │ │ │ │ └─xfce4-radio-plu
     │ │ │ │ │ ├─xfdesktop
     │ │ │ │ │ ├─xfwm4
     │ │ │ │ │ └─{xfce4-session}
     │ │ │ │ └─xscreensaver
     │ │ │ └─{gdm-session-wo}
     │ │ └─{gdm-simple-sla}
     │ └─{gdm-binary}

This is in my syslog:

Jul 12 11:11:18 HOSTNAME acpid: client 1359[0:0] has disconnected
Jul 12 11:11:18 HOSTNAME acpid: client connected from 5204[0:0]
Jul 12 11:11:18 HOSTNAME acpid: 1 client rule loaded
Jul 12 11:11:19 HOSTNAME gnome-session[5226]: WARNING: Could not launch application 'metacity.desktop': Unable to start application: Failed to execute child process "metacity" (No such file or directory)
Jul 12 11:11:19 HOSTNAME gnome-session[5226]: WARNING: Could not launch application 'gnome-power-manager.desktop': Unable to start application: Failed to execute child process "gnome-power-manager" (No such file or directory)
Jul 12 11:11:19 HOSTNAME gdm-simple-greeter[5241]: devkit-power-gobject-WARNING: Couldn't enumerate devices: The name org.freedesktop.UPower was not provided by any .service files
Jul 12 11:11:19 HOSTNAME gdm-simple-greeter[5241]: devkit-power-gobject-WARNING: Error invoking GetAll() to get properties: The name org.freedesktop.UPower was not provided by any .service files
Jul 12 11:11:19 HOSTNAME gdm-simple-greeter[5241]: Gtk-WARNING: /build/buildd/gtk+2.0-2.20.1/gtk/gtkwidget.c:5636: widget not within a GtkWindow
Jul 12 11:11:23 HOSTNAME gdm-session-worker[5243]: GLib-GObject-CRITICAL: g_value_get_boolean: assertion `G_VALUE_HOLDS_BOOLEAN (value)' failed
Jul 12 11:11:52 HOSTNAME init: tty1 main process ended, respawning

Regards
Lars

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-session-bin 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Mon Jul 12 11:20:37 2010
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-session

[Charlie Kravetz (cjkgeek)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please attach the following as plain text files:

1. The actual /var/log/syslog file with these errors
2. ~/.xsession-errors log file

[Lars (lars-taeuber)]

Next time this happens I'll report the requested info.

Lars

[Charlie Kravetz (cjkgeek)]

Setting this bug back to new so that when the crash happens again, the reporter can attach the requested logs.

[Chris Coulson (chrisccoulson)]

Why is this assigned to gnome-session, when it wasn't even installed?

[Charlie Kravetz (cjkgeek)]

Why is gnome-session being reported by apport?

Jul 12 11:11:19 HOSTNAME gnome-session[5226]: WARNING: Could not launch application 'metacity.desktop': Unable to start application: Failed to execute child process "metacity" (No such file or directory)
Jul 12 11:11:19 HOSTNAME gnome-session[5226]: WARNING: Could not launch application 'gnome-power-manager.desktop': Unable to start application: Failed to execute child process "gnome-power-manager" (No such file or directory)

Aren't these gnome-session errors?

[Charlie Kravetz (cjkgeek)]

We should also ask the reporter to give us the results of

apt-cache policy gnome-session-bin
apt-cache policy gnome-session

so we can verify whether or not either package is installed. I do find on my Xubuntu 10.04 that "gnome-session-bin" is installed by default.

[Lars (lars-taeuber)]

Hi!

$ LANG=C apt-cache policy gnome-session
gnome-session:
  Installed: (none)
  Candidate: 2.30.0-0ubuntu1
  Version table:
     2.30.0-0ubuntu1 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/main Packages
$ LANG=C apt-cache policy gnome-session-bin
gnome-session-bin:
  Installed: 2.30.0-0ubuntu1
  Candidate: 2.30.0-0ubuntu1
  Version table:
 *** 2.30.0-0ubuntu1 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

I hope this helps. But it hasn't happened again so far. There already where some X11-related updates.

Lars

[Lars (lars-taeuber)]

Hi,

it happend again. I attach the requested files.

[Lars (lars-taeuber)]

syslog log file attached

regards
Lars

[Lars (lars-taeuber)]

By the way: this time it happend right after pressing [F3] while an urxvt had the focus.

Lars

[Charlie Kravetz (cjkgeek)]

 Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!