Bug#804434: gdm3: hangs when going to sleep due to low battery in laptop

[Arturo Borrero Gonzalez]

Package: gdm3
Version: 3.14.2-2
Severity: normal

Dear maintainer,

my laptop was running out of battery and at some point it tried to go to sleep
automatically.

I'm using XFCE4. The window hanged and I had to manually reboot the machine
(using physical buttons).

Here are the only weird things I see in my logs:

[...]
Nov  8 13:18:16 debian kernel: [ 3665.334493] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Nov  8 13:18:16 debian kernel: [ 3665.334495] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
Nov  8 13:18:16 debian NetworkManager[771]: <info>  (eth0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
Nov  8 13:18:16 debian dbus[741]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Nov  8 13:18:16 debian systemd[1]: Starting Network Manager Script Dispatcher Service...
Nov  8 13:18:16 debian NetworkManager[771]: <warn>  Failed to GDBus.Error:fi.w1.wpa_supplicant1.NotConnected: This interface is not connected: disconnect.
Nov  8 13:18:16 debian dbus[741]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Nov  8 13:18:16 debian nm-dispatcher: Dispatching action 'down' for wlan0
Nov  8 13:18:16 debian systemd[1]: Started Network Manager Script Dispatcher Service.
Nov  8 13:18:16 debian systemd[1]: Reached target Sleep.
Nov  8 13:18:16 debian systemd[1]: Starting Hibernate...
Nov  8 13:18:17 debian kernel: [ 3666.293561] PM: Hibernation mode set to 'platform'
Nov  8 13:18:17 debian systemd-sleep[24822]: Suspending system...
Nov  8 13:18:17 debian /etc/gdm3/Xsession[1876]: [2085:2301:1108/131817:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -106
[...]

After these logs, it comes the new boot proccess.

I don't know if this bug belongs to gdm3 actually. Please reassign if neccesary.

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

Kernel: Linux 4.2.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gdm3 depends on:
ii  accountsservice                       0.6.40-3
ii  adduser                               3.113+nmu3
ii  dconf-cli                             0.24.0-2
ii  dconf-gsettings-backend               0.24.0-2
ii  debconf [debconf-2.0]                 1.5.57
ii  gir1.2-gdm3                           3.14.2-2
ii  gnome-session-bin                     3.18.1.2-1
ii  gnome-settings-daemon                 3.18.1-1+b1
ii  gnome-shell                           3.18.1-1
ii  gnome-terminal [x-terminal-emulator]  3.18.1-1
ii  gsettings-desktop-schemas             3.18.1-1
ii  libaccountsservice0                   0.6.40-3
ii  libaudit1                             1:2.4.4-4
ii  libc6                                 2.19-22
ii  libcanberra-gtk3-0                    0.30-2.1
ii  libcanberra0                          0.30-2.1
ii  libgdk-pixbuf2.0-0                    2.32.1-1
ii  libgdm1                               3.14.2-2
ii  libglib2.0-0                          2.46.1-1
ii  libglib2.0-bin                        2.46.1-1
ii  libgtk-3-0                            3.18.2-1
ii  libpam-modules                        1.1.8-3.1
ii  libpam-runtime                        1.1.8-3.1
ii  libpam-systemd                        227-2
ii  libpam0g                              1.1.8-3.1
ii  librsvg2-common                       2.40.11-1
ii  libselinux1                           2.3-2+b1
ii  libsystemd0                           227-2
ii  libwrap0                              7.6.q-25
ii  libx11-6                              2:1.6.3-1
ii  libxau6                               1:1.0.8-1
ii  libxdmcp6                             1:1.1.2-1
ii  libxrandr2                            2:1.5.0-1
ii  lsb-base                              9.20150917
ii  metacity [x-window-manager]           1:3.18.1-1
ii  mutter [x-window-manager]             3.18.1-1
ii  policykit-1                           0.105-13
ii  ucf                                   3.0030
ii  x11-common                            1:7.7+12
ii  x11-xserver-utils                     7.7+5
ii  xfce4-session [x-session-manager]     4.12.1-3
ii  xfwm4 [x-window-manager]              4.12.3-1
ii  xterm [x-terminal-emulator]           320-1

Versions of packages gdm3 recommends:
ii  at-spi2-core               2.18.1-2
ii  desktop-base               8.0.2
ii  gnome-icon-theme           3.12.0-1
ii  gnome-icon-theme-symbolic  3.12.0-1
ii  x11-xkb-utils              7.7+2
ii  xserver-xephyr             2:1.17.3-2
ii  xserver-xorg               1:7.7+9
ii  zenity                     3.18.1.1-1

Versions of packages gdm3 suggests:
pn  gnome-orca            <none>
ii  libpam-gnome-keyring  3.18.2-1

-- debconf information:
* shared/default-x-display-manager: gdm3
  gdm3/daemon_name: /usr/sbin/gdm3