Apple

putting macbook to sleep at pre-defined time?

GIJoe
From Germany -> UK -> Germany...
Who joined March 29, 2003, 11:44 a.m.
Wrote the following at May 13, 2014, 5:36 p.m...
hi,

google didn't come up with anything - i'm looking for a method to put my MBP to sleep at some pre-defined time a la 'go to sleep at <this time> on <that date>, no questions asked' .
ideally to be run from terminal and as a normal user, not root.

the background is that i had to disable most of the power management on mine since the automatic GPU-switching when connected to an external monitor on wakeup can lead to a kernel panic (one of the gazillion of documented yet eternally unresolved problems on the apple forums, sadly).

just looking for a way to prevent the machine from running for hours idling where it would normally go to sleep automatically after finishing a job.
ClassicHasClass avatar
ClassicHasClass
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Who joined July 25, 2012, 7:12 p.m.
Wrote the following at May 13, 2014, 8:50 p.m...
cron job that does osascript -e 'tell application "Finder" to sleep'. T,FTFY. :)
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bigD
From Socal
Who joined June 17, 2008, 8:38 p.m.
Wrote the following at May 13, 2014, 8:57 p.m...
Have you tried the 'Schedule' option in the Energy Saver module of System Preferences?
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vishnu
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From Minneapolis, Minnesota USA
Who joined March 18, 2007, 3:25 p.m.
Wrote the following at May 13, 2014, 11:23 p.m...
GIJoe wrote: ...since the automatic GPU-switching when connected to an external monitor on wakeup can lead to a kernel panic (one of the gazillion of documented yet eternally unresolved problems on the apple forums, sadly).

Yet another of the innumerable reasons why my MBP hasn't been turned on in two and a half years. Which isn't to say all you macaholics aren't good people! Wrong, but good... ;)
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yetanother**ixuser avatar
yetanother**ixuser
From Flynn's Arcade
Who joined May 21, 2004, 4:47 a.m.
Wrote the following at May 14, 2014, 3:10 a.m...
just in case...

http://gfx.io/

you can also force which graphic card you want to use, so no more switching will occur.
no plan
GIJoe
From Germany -> UK -> Germany...
Who joined March 29, 2003, 11:44 a.m.
Wrote the following at May 14, 2014, 3:52 a.m...
ClassicHasClass wrote: cron job that does osascript -e 'tell application "Finder" to sleep'. T,FTFY. :)


thanks - that would be the ticket - but how to put in a cron job that only runs once? they also use some unreadable format to set up. not good if you have to google everytime for the syntax beforehand. ;) alternatively, there may be a way to embed it into a shell-script that is fed a variable for date and time and keeps waiting until that condition is met.
or any hack that would enable a normal user to execute 'pmset schedule sleep', really. that one has all the functionality already...

Have you tried the 'Schedule' option in the Energy Saver module of System Preferences?


yes, but it's graphical frontend only. i'm not familiar with automator however... perhaps time to brush up on that?

just in case...
http://gfx.io/
you can also force which graphic card you want to use, so no more switching will occur.


i use that but power-source-based switching has been removed from it - and seems to be the cause.
i just wish there was a way to disable the integrated stuff completely and force the use of the discrete GPU at all times. battery life be damned.

thanks guys, time to have a look at scripting and automator, i think. :)
duck avatar
duck
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From Jakobstad, Finland
Who joined Oct. 27, 2003, 5:22 p.m.
Wrote the following at May 14, 2014, 4:22 a.m...
Running things once at a specific time is the job of 'at'. It might be too oldeyworldey to be fit to exist on such a modern thing as a mac though.
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guardian452 avatar
guardian452
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From Kentucky, United States
Who joined Aug. 21, 2007, 10:12 p.m.
Wrote the following at May 14, 2014, 4:29 a.m...
It exists in 10.9... and it works just fine.


Code: Select all

AT(1)                     BSD General Commands Manual                    AT(1)

NAME
at, batch, atq, atrm -- queue, examine, or delete jobs for later execu-
tion

SYNOPSIS
at [-q queue] [-f file] [-mldbv] time
at [-q queue] [-f file] [-mldbv] -t [[CC]YY]MMDDhhmm[.SS]
at -c job [job ...]
at -l [job ...]
at -l -q queue
at -r job [job ...]

atq [-q queue] [-v]

atrm job [job ...]

batch [-q queue] [-f file] [-mv] [time]

DESCRIPTION
The at and batch utilities read commands from standard input or a speci-
fied file.  The commands are executed at a later time, using sh(1).
:

Messi:~ mjw$ at
usage: at [-q x] [-f file] [-m] time
at -c job [job ...]
at [-f file] -t [[CC]YY]MMDDhhmm[.SS]
at -r job [job ...]
at -l -q queuename
at -l [job ...]
atq [-q x] [-v]
atrm job [job ...]
batch [-f file] [-m]
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hamei
From over the rainbow
Who joined Feb. 24, 2004, 4:10 p.m.
Wrote the following at May 14, 2014, 8:12 a.m...
duck wrote: Running things once at a specific time is the job of 'at'.

Ooh. Useful. Thank you !
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robespierre
From Boston
Who joined Sept. 12, 2011, 2:28 p.m.
Wrote the following at May 14, 2014, 8:13 a.m...
You can write a shell script that calls pmset(1) and then "chmod 4755" the script.
something like
#!/bin/sh
pmset schedule sleep "$1 $2"

then "chown root" the script.
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duck avatar
duck
Donor
From Jakobstad, Finland
Who joined Oct. 27, 2003, 5:22 p.m.
Wrote the following at May 15, 2014, 12:59 a.m...
robespierre wrote: You can write a shell script that calls pmset(1) and then "chmod 4755" the script.
something like
#!/bin/sh
pmset schedule sleep "$1 $2"

then "chown root" the script.


chown before chmod, or the suid bit will be stripped*

*) this possibly does not happen on some platforms
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