My Acer Aspire One D250, kept going into suspend every minute or so, whenever I was not logged in to a window manager. I run Debian testing and had my first real interaction with systemd (except for systemctl).

Turns out there are some settings in /etc/systemd/logind.conf that configures some of the power management features.

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# See logind.conf(5) for details

[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#InhibitDelayMaxSec=5
HandlePowerKey=poweroff
HandleSuspendKey=ignore
HandleHibernateKey=ignore
HandleLidSwitch=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
IdleAction=ignore
#IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes

First I asked systemd to ignore everything but the power button, and as I somewhat expected this didn't do the trick. Then I set the IdleActionSec to the actual amount of second (1800), that didn't work either. In the end completely disabling idling, stopped the suspend.

IdleAction=ignore

My Acer Aspire One D250, kept going into suspend every minute or so, whenever I was not logged in to a window manager. I run Debian testing and had my first real interaction with systemd (except for systemctl).

Turns out there are some settings in /etc/systemd/logind.conf that configures some of the power management features.

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# See logind.conf(5) for details

[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#InhibitDelayMaxSec=5
HandlePowerKey=poweroff
HandleSuspendKey=ignore
HandleHibernateKey=ignore
HandleLidSwitch=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
IdleAction=ignore
#IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes

First I asked systemd to ignore everything but the power button, and as I somewhat expected this didn't do the trick. Then I set the IdleActionSec to the actual amount of second (1800), that didn't work either. In the end completely disabling idling, stopped the suspend.

IdleAction=ignore