Public bug reported:
Binary package hint: xfce4-session
XUbuntu, xfce as window manager, with xfce panel and compiz running
(started out of a terminal and sent in bg with everything redirected
into /dev/null). GDM.
After some heavy OpenGL usage (ioquake and compiz abuse) the buttons
in logout/shutdown dialog were shown grayed out and disabled.
"Logout" and "Switch user" worked.
Trying to logout and select Shutdown causes a restart of GDM.
.xsession-errors has these:
libnm_glib_nm_state_cb: dbus returned an error.
(org.freedesktop.DBus.Error.AccessDenied) A security policy in place prevents
this sender from sending this message to this recipient, see message bus
configuration file (rejected message had interface
"org.freedesktop.NetworkManager" member "state" error name "(unset)"
destination "org.freedesktop.NetworkManager")
Terminated
** (xfce4-session:2979): WARNING **: xfsm-shutdown-helper.c:151: Failed to
contact HAL: A security policy in place prevents this sender from sending this
message to this recipient, see message bus configuration file (rejected message
had interface "org.freedesktop.Hal.Device.SystemPowerManagement" member
"ThisMethodMustNotExistInHal" error name "(unset)" destination
"org.freedesktop.Hal")
** Message: xfsm-shutdown-helper.c:235: HAL not available or does not permit to
shutdown/reboot the computer, trying sudo fallback instead.
(xfce4-session:2979): Gtk-CRITICAL **: gtk_widget_set_sensitive:
assertion `GTK_IS_WIDGET (widget)' failed
(xfce4-session:2979): Gtk-CRITICAL **: gtk_widget_set_sensitive:
assertion `GTK_IS_WIDGET (widget)' failed
** (xfce4-session:2979): CRITICAL **: xfsm_shutdown_helper_destroy:
assertion `helper != NULL' failed
and an attempt to strace the xfce4-session process shows:
$ strace -ff -e execve -v -s 1024 -p 2979
Process 2979 attached - interrupt to quit
Process 30804 attached (waiting for parent)
Process 30804 resumed (parent 2979 ready)
[pid 30804] execve("/usr/bin/sudo", ["sudo", "-H", "-S", "-p", "XFSM_SUDO_PASS
", "--", "/usr/lib/xfce4-session/xfsm-shutdown-helper"],
["GNOME_KEYRING_PID=2849", "USER=raa",
"GNOME_KEYRING_SOCKET=/tmp/keyring-F9DoJ6/socket", "SSH_AGENT_PID=2968",
"HOME=/home/raa", "DESKTOP_SESSION=xfce4", "LC_CTYPE=",
"GDM_XSERVER_LOCATION=local",
"DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-nhLYr6IaAT,guid=d8cb5f1dde9ec5612ec3580047ac9b61",
"LOGNAME=raa", "USERNAME=raa", "WINDOWPATH=7",
"PATH=/home/raa/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games",
"DISPLAY=:0.0", "LANG=C", "XAUTHORITY=/home/raa/.Xauthority",
"SSH_AUTH_SOCK=/tmp/ssh-TTajah2853/agent.2853", "SHELL=/bin/bash",
"GDMSESSION=xfce4", "PWD=/home/raa",
"XDG_DATA_DIRS=etc/xdg/xubuntu:/usr/local/share/:/usr/share/:/usr/share/gdm/:/usr/share",
"MANPATH=:/home/raa/share/man",
"SESSION_MANAGER=local/steel:/tmp/.ICE-unix/2979", "LC_ALL=C", "LANGUAGE=C"]) = 0
Process 30804 detached
--- SIGCHLD (Child exited) @ 0 (0) ---
Process 2979 detached
and some more
writev(16,
[{"l\1\0\1\0\0\0\0\22\0\0\0\264\0\0\0\1\1o\0%\0\0\0/org/freedesktop/Hal/devices/computer\0\0\0\6\1s\0\23\0\0\0org.freedesktop.Hal\0\0\0\0\0\2\1s\0000\0\0\0org.freedesktop.Hal.Device.SystemPowerManagement\0\0\0\0\0\0\0\0\3\1s\0\33\0\0\0ThisMethodMustNotExistInHal\0\0\0\0\0",
200}, {"", 0}], 2) = 200
gettimeofday({1202510043, 226718}, NULL) = 0
poll([{fd=16, events=POLLIN, revents=POLLIN}], 1, 2000) = 1
read(16,
"l\3\1\0014\1\0\0\23\0\0\0m\0\0\0\6\1s\0\5\0\0\0:1.17\0\0\0\4\1s\0\'\0\0\0org.freedesktop.DBus.Error.AccessDenied\0\5\1u\0\22\0\0\0\10\1g\0\1s\0\0\7\1s\0\24\0\0\0org.freedesktop.DBus\0\0\0\0/\1\0\0A
security policy in place prevents this sender from sending this message to
this recipient, see message bus configuration file (rejected message had
interface \"org.freedesktop.Hal.Device.SystemPowerManagement\" member
\"ThisMethodMustNotExistInHal\" error name \"(unset)\" destination
\"org.freedesktop.Hal\")\0", 2048) = 436
read(16, 0x8405138, 2048) = -1 EAGAIN (Resource temporarily
unavailable)
write(2, "\n** (xfce4-session:2979): WARNING **: xfsm-shutdown-helper.c:151:
Failed to contact HAL: A security policy in place prevents this sender from
sending this message to this recipient, see message bus configuration file
(rejected message had interface
\"org.freedesktop.Hal.Device.SystemPowerManagement\" member
\"ThisMethodMustNotExistInHal\" error name \"(unset)\" destination
\"org.freedesktop.Hal\")\n", 393) = 393
write(2, "** Message: xfsm-shutdown-helper.c:235: HAL not available or does not
permit to shutdown/reboot the computer, trying sudo fallback instead.\n", 140)
= 140
I don't have /usr/lib/xfce4-session/xfsm-shutdown-helper and was not
able to find it.
** Affects: xfce4-session (Ubuntu)
Importance: Undecided
Status: New
--
"Shutdown" and "Restart" buttons disabled in XFCE shutdown dialog
https://bugs.launchpad.net/bugs/190312
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