Public bug reported:
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.
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Tags: automatic logout systemd-logind
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https://bugs.launchpad.net/bugs/1772629
Title:
Automatic logout when resuming from suspend on Xubuntu 18.04
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