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Merge pull request #13212 from poettering/sleep-conf-default

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sleep: document default HibernateDelaySec=
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Zbigniew Jędrzejewski-Szmek 2019-07-29 16:03:54 +02:00 committed by GitHub
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3 changed files with 20 additions and 6 deletions
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15
TODO
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@ -19,6 +19,21 @@ Janitorial Clean-ups:
Features:
* beef up s2h to implement a battery watch loop: instead of entering
hibernation unconditionally after coming back from resume make a decision
based on the battery load level: if battery level is above a specific
threshold, go to suspend again, only hibernate if below it. This means we'd
stick to suspend usually, but fall back to hibernation only when battery runs
empty (well, subject to our sampling interval). Related to this, check if we
can make ACPI _BTP (i.e. /sys/class/power_supply/*/alarm) work for us too,
i.e. see if it can wake up machines from suspend, so that we could resume
automatically when the system is low on power and move automatically to
hibernation mode. (see
https://uefi.org/sites/default/files/resources/ACPI%206_2_A_Sept29.pdf
section 10.2.2.8 and
https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby-wake-sources
at the end).
* add an explicit "vertical" mode to format-table, so that "systemctl
status"-like outputs (i.e. with a series of field names left and values
right) become genuine first class citizens, and we gain automatic, sane JSON

9
man/systemd-sleep.conf.xml
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@ -168,11 +168,10 @@
<varlistentry>
<term><varname>HibernateDelaySec=</varname></term>
<listitem><para>The amount of time in seconds
that will pass before the system is automatically
put into hibernate when using
<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
</para></listitem>
<listitem><para>The amount of time the system spends in suspend mode before the system is
automatically put into hibernate mode, when using
<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. Defaults
to 2h.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>

2
src/shared/sleep-config.c
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@ -82,7 +82,7 @@ int parse_sleep_config(SleepConfig **ret_sleep_config) {
if (!sc->hybrid_states)
sc->hybrid_states = strv_new("disk");
if (sc->hibernate_delay_sec == 0)
sc->hibernate_delay_sec = 180 * USEC_PER_MINUTE;
sc->hibernate_delay_sec = 2 * USEC_PER_HOUR;
/* ensure values set for all required fields */
if (!sc->suspend_states || !sc->hibernate_modes