Public bug reported:
Ubuntu 16.04.3 LTS, multiseat setup.
systemd: Installed: 229-4ubuntu21
lightdm: Installed: 1.18.3-0ubuntu1.1
logind.conf:IdleAction=suspend
logind.conf:IdleActionSec=300
Using multiseat, it is not possible to have gnome settings controlling
idle suspend, as it would ignore the other seat. IdleAction=suspend in
/etc/systemd/logind.conf works well, provided both seats are logged in
or locked.
After boot, or after logout the seat remains showing login screen and
the system never suspends.
loginctl show-session provides IdleHint=yes that allows to determine
whether the user is active. For some reason Active property is yes all
the time.
But for the login screen the show-session does not provide the hint
about seat idling:
$ loginctl show-session c9
Id=c9
User=108
Name=lightdm
Timestamp=Sun 2017-11-05 22:35:37 CET
TimestampMonotonic=13418600852
VTNr=7
Seat=seat0
Display=:1
Remote=no
Service=lightdm-greeter
Scope=session-c9.scope
Leader=12431
Audit=0
Type=x11
Class=greeter
Active=yes
State=active
IdleHint=no
IdleSinceHint=0
IdleSinceHintMonotonic=0
Working on a script to check for IdleHint=Yes and Service=lightdm-
greeter and suspend based on this.
I am marking this as a bug in lightdm because I think it is not
correctly reporting the idle status to the system.
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: lightdm multiseat suspend systemd
** Package changed: systemd (Ubuntu) => lightdm (Ubuntu)
** Summary changed:
- systemd idleaction=suspend not working in multiseat while a screen is showing
login screen
+ systemd idleaction=suspend not working in multiseat while a screen is showing
login prompt
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https://bugs.launchpad.net/bugs/1730606
Title:
systemd idleaction=suspend not working in multiseat while a screen is
showing login prompt
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