[Pkg-xfce-devel] Bug#760940: xfce4-session: No shutdown / reboot with SLiM anymore

[debian at cschramm.eu (Christopher Schramm)]

Package: xfce4-session
Version: 4.10.1-8
Severity: normal

Starting with xfce4-session 4.10.1-7 I'm having trouble with shutdown and reboot in conjunction with SLiM. When I try to shut down or reboot the system using Xfce's dialog, the desktop disappears as usual, but then SLiM shows "failed to execute login command" and I end up at the login screen. It somehow fails to shut down the X server. I can initialize a shutdown from the login screen by pressing the power button then.

SLiM is configured to grab the sessions from /usr/share/xsessions, so the only command it seems to know is startxfce4. I'm seeing this on two different systems.

None of the documented changes of 4.10.1-7 seems to possibly cause this, but I can replicate and "fix" it just by switching between xfce4-session 4.10.1-7 and 4.10.1-6. Any ideas?

-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.14-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages xfce4-session depends on:
ii  libatk1.0-0          2.12.0-1
ii  libc6                2.18-5
ii  libcairo2            1.12.16-2
ii  libdbus-1-3          1.8.6-1
ii  libdbus-glib-1-2     0.102-1
ii  libfontconfig1       2.11.0-5
ii  libfreetype6         2.5.2-1
ii  libgdk-pixbuf2.0-0   2.30.7-1
ii  libglib2.0-0         2.40.0-3
ii  libgtk2.0-0          2.24.23-1
ii  libice6              2:1.0.8-2
ii  libpango-1.0-0       1.36.3-1
ii  libpangocairo-1.0-0  1.36.3-1
ii  libpangoft2-1.0-0    1.36.3-1
ii  libsm6               2:1.2.1-2
ii  libwnck22            2.30.7-1
ii  libx11-6             2:1.6.2-1
ii  libxfce4ui-1-0       4.10.0-5
ii  libxfce4util6        4.10.1-1
ii  libxfconf-0-2        4.10.0-2
ii  multiarch-support    2.18-5
ii  xfce4-settings       4.10.1-2
ii  xfconf               4.10.0-2

Versions of packages xfce4-session recommends:
ii  dbus-x11                     1.8.2-1
ii  libpam-systemd               204-8
pn  systemd-shim | systemd-sysv  <none>
ii  upower                       0.9.23-2+b2
ii  x11-xserver-utils            7.7+2
ii  xfdesktop4                   4.10.2-3
ii  xfwm4                        4.10.1-2
ii  xscreensaver                 5.26-1

Versions of packages xfce4-session suggests:
pn  fortunes-mod  <none>
ii  sudo          1.8.9p5-1

-- no debconf information