Energiespareinstellungen (Debian)

Festplatte Spindown aktivieren

# nano /etc/hdparm.conf
command_line {
       hdparm -B 200 /dev/sda
}

Werte 1 bis 240 sind in 5 Sekunden-Schritten, Werte 241 bis 251 sind Schritte von 30 Minuten.

Festplatte Spindown deaktivieren

Entweder in Root-Terminal:

hdparm -B 255 /dev/sdx

Oder in /etc/hdparm.conf die o. g. Einträge wieder auskommentieren. Evtl beides?

Disable Suspend and Hibernation

If the operation system should not attempt any type of suspend or hybernation, the appropriate targets need to be disabled at the systemd level:

systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

Re-enable hibernate and suspend with the following command:

systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target

Restart systemd-login service or reboot:

systemctl restart systemd.logind.service

Check if changes have been applied:

systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target

Sources:

• https://wiki.debian.org/Suspend#Disable_suspend_and_hibernation
• https://ostechnix.com/linux-tips-disable-suspend-and-hibernation/

Disable Sleep on Login Screen (Untested)

On a default installation of Debian the login screen is provided by the Gnome Display Manager, or GDM in short. It can be customized as follows:

Settings in Debian DConf (seems only to work for the User session not for the login screen)

Open dconf

Go to org/gnome/settings-daemon/plugins/power/

Try to change the following settings:

• sleep-inactive-ac-timeout -> 0
• sleep-inactive-ac-type -> 'nothing'
• sleep-inactive-battery-timeout -> 0
• sleep-inactive-battery-type -> 'nothing'

Settings in greeter.dconf-defaults (seems not to work)

Edit /etc/gdm3/greeter.dconf-defaults

Uncomment and change following lines to:

sleep-inactive-ac-timeout = 0
sleep-inactive-ac-type='nothing'

Settings in gconf of GDM3 User (seems not to work)

On Debian 10 the GDM greeter runs as the user Debian-gdm. You can see the user name of the user the greeter runs with with using top or htop in a terminal session when on the Display the greeter is shown by lookig for the gdm-wayland-session for /usr/share/gdm/greeter/autostart.

The user Debian-gdm has own gconf settings. These can be checked as follows:

sudo -u Debian-gdm gsettings get org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type
sudo -u Debian-gdm gsettings get org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout
sudo -u Debian-gdm gsettings get org.gnome.settings-daemon.plugins.power idle-tim

They can be changed as follows:

sudo -u Debian-gdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
sudo -u Debian-gdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
sudo -u Debian-gdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power idle-tim false