[Bug 1772629] Re: Automatic logout when resuming from suspend on Xubuntu 18.04

[Paulo Marcel Coelho Aragão]

I have discovered that the automatic logout was caused by the Xorg
server crashing with SIGBUS. So this bug may and should be closed.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1772629

Title:
  Automatic logout when resuming from suspend on Xubuntu 18.04

Status in systemd package in Ubuntu:
  New

Bug description:
  When my Xubuntu 18.04 laptop resumes from suspend, systemd-logind
  automatically logs out of the current session if the laptop has stayed
  suspended for more than a couple of hours. If the interval between
  suspend and resume is short, it doesn't log out. I still haven't
  discovered how long this interval has to be in order to cause the
  logout.

  I enabled debug on the systemd-logind.service, creating file
  _/etc/systemd/system/systemd-logind.service.d/10-debug.conf_:

  [Service]
  Environment=SYSTEMD_LOG_LEVEL=debug

  which causes systemd-logind to log all D-Bus messages it handles, but
  couldn't spot anything that might have caused the logout.

  I scanned all systemd journal messages (`journalctl`) before systemd-
  logind starts killing the current session, investigated all that
  looked suspicious but couldn't find anything that might influence an
  automatic logout. Here are some of the messages that striked me as
  suspicious (they are not sequential, but pulled from different
  occasions):

  upowerd[1600]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0
  polkitd(authority=local)[840]: Unregistered Authentication Agent for unix-session:c2 (system bus name :1.46, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
  wpa_supplicant[811]: dbus: fill_dict_with_properties dbus_interface=fi.w1.wpa_supplicant1.Interface dbus_property=Stations getter failed
  wpa_supplicant[811]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
  at-spi-bus-launcher[7031]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"
  at-spi-bus-launcher[7031]:       after 30333 requests (30333 known processed) with 0 events remaining.
  systemd-logind[779]: Inhibitor xfce4-power-manager (xfce4-power-manager handles these events) pid=8611 uid=1000 mode=block stopped
  systemd-logind[779]: Electing new display for user paulo
  systemd-logind[779]: Ignoring session c8

  logind config doesn't have anything that might cause this:

  paulo:~$ loginctl show-session
  EnableWallMessages=no
  NAutoVTs=6
  KillUserProcesses=no
  RebootToFirmwareSetup=no
  IdleHint=no
  IdleSinceHint=0
  IdleSinceHintMonotonic=0
  BlockInhibited=handle-power-key:handle-suspend-key:handle-hibernate-key
  DelayInhibited=sleep
  InhibitDelayMaxUSec=5s
  HandlePowerKey=poweroff
  HandleSuspendKey=suspend
  HandleHibernateKey=hibernate
  HandleLidSwitch=suspend
  HandleLidSwitchDocked=ignore
  HoldoffTimeoutUSec=30s
  IdleAction=ignore
  IdleActionUSec=30min
  PreparingForShutdown=no
  PreparingForSleep=no
  Docked=no
  RemoveIPC=yes
  RuntimeDirectorySize=615313408
  InhibitorsMax=8192
  NCurrentInhibitors=5
  SessionsMax=8192
  NCurrentSessions=1
  UserTasksMax=10813

  I can't find any anything that might cause an automatic logout after a
  time interval. I'm really stumped.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: systemd 237-3ubuntu10
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Tue May 22 07:36:59 2018
  InstallationDate: Installed on 2018-04-28 (23 days ago)
  InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  MachineType: Dell Inc. Inspiron N5110
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=c4c2d11a-634c-4105-9991-e2fb5c18e1dc ro net.ifnames=0 quiet splash vt.handoff=1
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/26/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 08FDW5
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A06
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd05/26/2011:svnDellInc.:pnInspironN5110:pvrNotSpecified:rvnDellInc.:rn08FDW5:rvrA06:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron N5110
  dmi.product.version: Not Specified
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1772629/+subscriptions