{{tag>Brouillon}}

= Power saver - power management - ACPI

Voir :
* [[Mise en veille]]
* https://wiki.archlinux.org/index.php/Power_management
* https://wiki.debian.org/Suspend
* https://doc.ubuntu-fr.org/veille_et_hibernation


== Diag 

<code bash>
ps -ef
lsmof
</code>


== SystemD

''/etc/systemd/logind.conf''
<code ini>
HandleLidSwitch=ignore
</code>

<code bash>
systemctl restart systemd-logind
busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager HandleLidSwitch
busctl get-property org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager HandleLidSwitchDocked
</code>


You can use this to temporarily disable lid-switch events:
<code bash>
systemd-inhibit --what=handle-lid-switch sleep 1d
</code>

<code bash>
systemctl suspend
systemctl hibernate
systemctl hybrid-sleep
</code>


=== Disable

<code bash>
sudo systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target
</code>

Pour les portables
''/etc/systemd/logind.conf''
<code ini>
[Login]
HandleLidSwitch=ignore
HandleLidSwitchDocked=ignore
</code>


== Notes 

<code bash>
apt-get install pm-utils laptop-mode-tools
</code>


=== Console 

''/etc/console-tools/config''
<code bash>
BLANK_TIME=0
POWERDOWN_TIME=0
</code>

source : https://wiki.deimos.fr/D%C3%A9sactiver_la_mise_en_veille_de_l%27%C3%A9cran_sur_Debian.html


== Battery 

<code bash>
cat /sys/class/power_supply/BAT0/charge_full
cat /sys/class/power_supply/BAT0/charge_full_design

lspower
</code>



<code bash>
sudo apt install powertop
sudo powertop --calibrate

apt-get install tlp
sudo vim /etc/default/tlp
sudo tlp start
</code>

Voir https://linrunner.de/en/tlp/docs/tlp-configuration.html

Source : https://www.howtogeek.com/55185/how-to-maximize-the-battery-life-on-your-linux-laptop/


== ACPI

<code bash>
apt-get install acpid
acpi_listen
</code>

<code ->
cat /proc/acpi/wakeup
Device  S-state   Status   Sysfs node
</code>

=== acpi/interrupts

AE_NOT_FOUND infinitely on startup

Source : https://unix.stackexchange.com/questions/348806/acpi-exception-ae-not-found-infinitely-on-startup

If using sysdemd with rc.local disabled:
<code bash>
systemctl enable rc-local.service
</code>

Edit
<code bash>
sudo systemctl edit --full rc-local
</code>

Add to rc.local
<code bash>
echo "disable" > /sys/firmware/acpi/interrupts/gpe6F
</code>


=== C-STATE

https://www.golinuxhub.com/2018/06/what-cpu-c-states-check-cpu-core-linux.html

<code bash>
cat /proc/acpi/processor/CPU0/power
</code>

== Port USB

Le port USB se met en économie d’énergie. Par exemple la souris ne fonctionne plus après la sortie de la veille.

Voir https://logfile.ch/linux/2017/06/15/disable-usb-autosuspend-linux/

<code bash>
cat /sys/bus/usb/devices/<your device>/power/control
echo on > /sys/bus/usb/devices/<your device>/power/control
</code>

 == Autres

Voir https://www.geeks3d.com/hacklab/20160108/how-to-disable-the-blank-screen-on-raspberry-pi-raspbian/

<code bash>
sudo apt-get install x11-xserver-utils
</code>

''~/.config/lxsession/LXDE/autostart''
<code ini>
@xset s off
@xset -dpms 
@xset s noblank
</code>

''/etc/xdg/lxsession/LXDE/autostart'' !?

Ou 

''/etc/lightdm/lightdm.conf''
<code ini>
[SeatDefaults]
xserver-command=X -s 0 -dpms
</code>


=== Exécution à l'entrée en veille / Exécution à la sortie de la mise en veille

Exemple 

''/lib/systemd/system-sleep/atop-pm''
<code bash>
#!/bin/bash

PATH=/sbin:/usr/sbin:/bin:/usr/bin

case "$1" in
        pre)    systemctl stop atop
                exit 0
                ;;
        post)   systemctl start atop
                exit 0
                ;;
        *)      exit 1
                ;;
esac
</code>