add sleep hibernate

Sleep-Hibernate/sleep-hibernate.md

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+---
+format: markdown
+title: suspend-to-hibernate service
+...
+
+# explication
+
+Si la machine est en veille 5min alors elle passe en hibernation.  
+
+On place une *heure de reveil* (+4min par rapport à l'heure actuelle) dans *WAKEALARM* /sys/class/rtc/rtc0/wakealarm et on dit à la machine de se réveiller dans 5min via *rtcwake* :  
+
+~~~
+SLEEPLENGTH=+4min
+alarm set for " $(/bin/date -d "$SLEEPLENGTH") > /sys/class/rtc/rtc0/wakealarm
+rtcwake --seconds 600 --auto --mode no'
+~~~
+
+Au réveil on vérifie la valeur de l'alarme pour passer en mode hibernation ou rendre la machine active :  
+
+~~~
+WAKEALARM=/sys/class/rtc/rtc0/wakealarm
+ALARM=$(cat $WAKEALARM)
+NOW=$(/bin/date +%s)
+
+if [ -z "$ALARM" ] || [ "$NOW" -ge "$ALARM" ]; then
+   echo "hibernate triggered"
+   systemctl hibernate || systemctl suspend
+else
+   echo "normal wakeup, clearing RTC alarm."
+   rtcwake --auto --mode disable
+fi
+~~~
+
+**man rtcwake** (extrait) :   
+
+~~~
+rtcwake - enter a system sleep state until specified wakeup time
+
+       -a, --auto
+		   Read the clock mode (whether the hardware clock is set to UTC
+		   or local time)  from  the  adjtime  file, where hwclock(8)
+		   stores that information. This is the default.
+
+       -m, --mode mode
+                 no     Don't suspend, only set the RTC wakeup time.
+~~~
+
+# script complet
+
+## systemd suspend.target
+
+ajouter : Requires=suspend-to-hibernate.service dans /lib/systemd/system/suspend.target :  
+
+~~~{.bash}
+$ cat /lib/systemd/system/suspend.target
+#  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.
+
+[Unit]
+Description=Suspend
+Documentation=man:systemd.special(7)
+DefaultDependencies=no
+BindsTo=systemd-suspend.service
+After=systemd-suspend.service
+Requires=suspend-to-hibernate.service
+~~~
+
+## suspend-to-hibernate.service
+
+edit : /lib/systemd/system/suspend-to-hibernate.service  
+
+~~~{.bash}
+Description=Delayed hibernation suspend -> hibernate
+Documentation=https://bbs.archlinux.org/viewtopic.php?pid=1420279#p1420279
+Documentation=https://wiki.archlinux.org/index.php/Power_management
+Before=suspend.target
+Conflicts=hibernate.target hybrid-suspend.target
+StopWhenUnneeded=true
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+
+Environment="WAKEALARM=/sys/class/rtc/rtc0/wakealarm"
+Environment="SLEEPLENGTH=+39min"
+
+ExecStart=/bin/bash -c '\
+        /bin/echo -n "alarm set for " $(/bin/date -d "$SLEEPLENGTH"); \
+        /bin/echo $(/bin/date +%s -d "$SLEEPLENGTH") > $WAKEALARM; \
+        /bin/echo;\
+        /usr/sbin/rtcwake --seconds 2400 --auto --mode no'
+
+ExecStop=/bin/sh -c '\
+	    NOW=$(date '+%s'); \
+		ALARM=$(cat $WAKEALARM); \
+		/bin/echo "ALARM wake for hibernate :"$ALARM; \
+		/bin/echo "NOW :"$NOW; \
+		if [ -z "$ALARM" ] || [ "$NOW" -ge "$ALARM" ]; then \
+		   /bin/echo "hibernate triggered"; \
+		   /bin/systemctl hibernate || /bin/systemctl suspend; \
+		else \
+		   /bin/echo "normal wakeup, clearing RTC alarm."; \
+		   /usr/sbin/rtcwake --auto --mode disable; \
+		fi;'
+
+[Install]
+WantedBy=sleep.target
+~~~
+
+~~~{.bash}
+root@houyo:/lib/systemd/system# systemctl start suspend-to-hibernate
+root@houyo:/lib/systemd/system# systemctl enable suspend-to-hibernate
+Created symlink from /etc/systemd/system/sleep.target.wants/suspend-to-hibernate.service to /lib/systemd/system/suspend-to-hibernate.service.
+root@houyo:/lib/systemd/system# 
+~~~
+
+# Gestionnaire Alimention Xfce
+
+![](/Sleep-Hibernate/ges-alim-1.png)
+![](/Sleep-Hibernate/ges-alim-2.png)  
+![](/Sleep-Hibernate/ges-alim-3.png)
+![](/Sleep-Hibernate/ges-alim-4.png)
+
+# ce qui dois arriver
+
+## inactivitée sur batterie
+
+*  1m30s : reduire la luminosité à 5%
+*  2m    : écran vide
+* 15m    : mettre en veille sur Ram le système
+* 40m    : passer de veille sur Ram à veille sur disque
+
+## inactivitée sur secteur
+
+Quand branché sur le secteur aucun paramètre de mise en veille n'est activé.
+
+*  1m30s : reduire la luminosité à 5%
+*  2m    : écran vide
+
+# trouble
+
+## ask for passwd
+
+Automatic suspend from the xfce power manager does not work, as a window opens and asks for my password. Well, if it wants to suspend the system after a given timeout, I cannot enter my password as I'm not in front of my system then. Once I'm able to enter my password it is too late to run the suspend action.  
+
+message in the upper corner saying :  
+
+~~~
+Power Manager: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Method call timed out.
+~~~
+
+Put **light-locker setting** *Auto Lock Session* to **When the screensaver is deactivated** to solves the problem.  
+
+see :  
+* [Ubuntu Bug : 1605189 Authentication is required for suspending the system](https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1605189)
+* [Xubuntu Bug : Failing to sleep after inactivity - power manager error ?](https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1441460)
+
+## There's already a shutdown or sleep operation in progress
+
+~~~
+Failed to hibernate system via logind: There's already a shutdown or sleep operation in progress
+Failed to suspend system via logind: There's already a shutdown or sleep operation in progress
+~~~
+
+missing in : /lib/systemd/system/suspend.target  
+
+~~~
+Requires=suspend-to-hibernate.service
+~~~
+
+# source
+
+* [askubuntu how-to-go-automatically-from-suspend-into-hibernate](http://askubuntu.com/questions/12383/how-to-go-automatically-from-suspend-into-hibernate/662701#662701?newreg=9ae06dac594046939234f1aa433c9a16)
+* [ArchLinux suspend broken since systemd update](https://bbs.archlinux.org/viewtopic.php?id=204346)