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I have a headless server running Ubuntu Server Edition 14.04.

I have tested pm-suspend-hybrid and it works. I am able to manually put the server into suspend-hybrid through command line.

I am also successfully able to resume the server through WoL from another machine.

What I would like to do is get the server to automatically go into suspend-hybrid when not in use for at least 30 mins.

By use I mean:

  • remote machines are accessing NFS shares on the server over the network
  • my TV is accessing DLNA content over the network

If it is too complicated to determine when a machine is idle, alternatively I would like to set the server to go into suspend-hybrid from 01:00 AM every day.

Is there any tutorial or step by step process I can use to get this working?

  • 1
    Run man crontab and look at the syntax there to put your command to run at 1am. – Daniel Jun 15 '15 at 20:43
  • Welcome to Ask Ubuntu! ;-) What I would to is put the DLNA and NFS log level to info, then parse the logs and see whether there was no activity for 30 minutes and then use pm-suspend-hybrid. (I would run the script every 5 minutes using cron. – Fabby Jun 15 '15 at 23:20
1

Adding on to what @Daniel said:

The following will make the computer pm-suspend-hybrid every day at 1 A.M.:

0 1 * * * pm-suspend-hybrid >/dev/null 2>&1

Add this line to your crontab (You can access your crontab by running sudo crontab -e)

  • Thanks very much this worked. I had to amend the command slightly to get it working by pointing it to the location of pm-suspend-hybrid. – BrokenCode Jun 17 '15 at 19:45
  • You're welcome! Glad I could help :) – Grammargeek Jun 17 '15 at 20:14

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