Power Management, SystemD, etc.

[Trever L. Adams]

Hello everyone,

I am having some difficulty finding the right information. I have a
server that is only needed at certain times. Wake-on-lan works well, so
I can do administration, etc.

rtcwake works, so I can tell it to wake  each day 3-5 minutes or so
(haven't decided) before when it is needed.

The problem I am having is figuring out how to set it up so it
automatically goes to sleep after X period of time and stay asleep.

This is a F20 system, so systemd is installed. I would like to have a
script get called prior to sleep so it can set rtcwake.

I cannot find any documentation for a non-X/gui/gnome/whatever system to
set up the idle time out. Do the hooks in /etc/pm/sleep.d work with systemd?

I prefer to do suspend to ram for this setup.

Thank you for any help,
Trever

[V.99]

On 19.5.2014 12:15, Trever L. Adams wrote:
> The problem I am having is figuring out how to set it up so it
> automatically goes to sleep after X period of time and stay asleep.

Hi Trever.

I played with systemd a bit and made a script you can be inspired with 
(I hope).

Create a script /usr/lib/systemd/system-sleep/autosleep.sh and make it 
runnable:
-----------------------------------------------------
#!/bin/bash

# See: 
http://www.freedesktop.org/software/systemd/man/systemd-hibernate.service.ht...

PHASE="$1"
TYPE="$2"
sleep 30

echo "$(/bin/date +%Y%m%d-%H%M%S) P=$PHASE, T=$TYPE"
> > /var/log/autosleep.log

if [ "$PHASE" == "post" -a -f /autosleep ] ; then
    RUNTIME=
    . /autosleep
    if [ "$RUNTIME" -gt 0 ] ; then
    	case "$TYPE" in
    	suspend|hibernate|hybrid-sleep)
    		echo '/sbin/pm-suspend-hybrid' | at now + $RUNTIME minutes
    		echo "$(/bin/date +%Y%m%d-%H%M%S) autosleep in $RUNTIME minutes"
> > /var/log/autosleep.log

;;
    	*)	;;
    	esac
    fi
fi
-----------------------------------------------------
Then create a control file /autosleep:
-----------------------------------------------------
RUNTIME=10
-----------------------------------------------------
Replace number 10 with value you like, time is in minutes.

To start autosleep just sleep system manually. Next sleeps occurs 
automatically.
To stop autosleep first delete scheduled task by /bin/at -d and then 
remove /autosleep file.

It seems hooks in /etc/pm/sleep.d doesn't work with systemd.

[Trever L. Adams]

On 05/27/2014 02:54 PM, V.99 wrote:
> On 19.5.2014 12:15, Trever L. Adams wrote:
> > The problem I am having is figuring out how to set it up so it
> > automatically goes to sleep after X period of time and stay asleep.
>
> Hi Trever.
>
> I played with systemd a bit and made a script you can be inspired with
> (I hope).
>
> Create a script /usr/lib/systemd/system-sleep/autosleep.sh and make it
> runnable:
>
> #!/bin/bash
>
> # See:
> http://www.freedesktop.org/software/systemd/man/systemd-hibernate.service.ht...
>
> PHASE="$1"
> TYPE="$2"
> sleep 30
>
> echo "$(/bin/date +%Y%m%d-%H%M%S) P=$PHASE, T=$TYPE"
> > > /var/log/autosleep.log
>
> if [ "$PHASE" == "post" -a -f /autosleep ] ; then
>     RUNTIME=
>     . /autosleep
>     if [ "$RUNTIME" -gt 0 ] ; then
>         case "$TYPE" in
>         suspend|hibernate|hybrid-sleep)
>             echo '/sbin/pm-suspend-hybrid' | at now + $RUNTIME minutes
>             echo "$(/bin/date +%Y%m%d-%H%M%S) autosleep in $RUNTIME
> minutes" >>/var/log/autosleep.log
>             ;;
>         *)    ;;
>         esac
>     fi
> fi
> Then create a control file /autosleep:
> RUNTIME=10
>
> Replace number 10 with value you like, time is in minutes.
>
> To start autosleep just sleep system manually. Next sleeps occurs
> automatically.
> To stop autosleep first delete scheduled task by /bin/at -d and then
> remove /autosleep file.
>
> It seems hooks in /etc/pm/sleep.d doesn't work with systemd.

Thank you. I believe I can make work with this for making mine systemd,
right now it is cron. I use rtcwake instead of sleep. As I need it to
wake up for specific timed events (backups, that is what the machine
does). I also have it set to wake-on-lan so that I can do restores if
needed.

The problem I need to figure out is how to have it sleep when the system
is idle. I have others that this would work well for, if I could do
that. Gnome, etc. does this. I haven't found a command line/systemd
setup that will do this.

Say 10 minutes of being idle.

Thank you for your help!

Again, I now see clearly some systemd things I didn't before.

Trever