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Old 11-18-2014, 11:06 PM   #1
ineloquucius
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What keeps my (Trusty?) Lubuntu awake at night (sometimes)?


My Lubuntu trusty isn't especially trusty when it comes to sleep. Where can I find a log of events that are keeping it awake?
 
Old 11-19-2014, 03:46 AM   #2
ondoho
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maybe dmesg.

why not just switch it off?
 
Old 11-19-2014, 07:42 AM   #3
ineloquucius
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You jest, sir...

Thought of dmesg, but it's festooned with other messages, so it's hard out there for a noob.

Is there not some place where xfce4 power mgr (or whatever watches these sleep disturbing events) keeps its own?
 
Old 11-19-2014, 09:46 AM   #4
michaelk
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I assume the PC is running and you hear the hard drive spin up. Typically, there are one or more system cronjobs that run at night.

/var/log/syslog
 
Old 11-21-2014, 03:15 PM   #5
ondoho
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Quote:
Originally Posted by ineloquucius View Post
Thought of dmesg, but it's festooned with other messages, so it's hard out there for a noob.
let me take the opportunity to say something about this.
because i stumble upon this sort of reply quite often - the argumentation here seems to be:
that i, or others who have been using linux longer than the self-confessed noob, have some kind of magic ability that makes it easy for them to read log messages. well, let me tell you, it isn't. it is still very much a pain in the brain. maybe less so than 3 years ago (when I was the noob), but it still is.
and, like in so many social situations (nothing to do with computers!), i have the choice to
a) read the logs for you, thus creating more and more situations for myself where I have to do the dirty stuff (again)
- or -
b) tell you to go through it yourself and learn to actually read it, thus gathering experience and the ability to help yourself.
 
Old 11-21-2014, 06:35 PM   #6
jefro
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Wake from some choice would be in Bios and maybe other places. Find all possible choices and then diag them.

People seem to leave on wake from lan on. A lot of crooks look just for that.
 
Old 11-22-2014, 12:18 AM   #7
ineloquucius
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It's not that the systems wakes up, it's just that it never goes to sleep in the first place. The sleep function must naturally be--while still awake--looking for certain events to keep or reset the inactivity timer to 0 secs. I'm trying to figure out what events are doing that long after I've walked away from the server.

Not worried about crooks in this case, but I can appreciate the comment on that score.
 
Old 11-22-2014, 09:40 AM   #8
ineloquucius
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Update:

If I restart the xfce4-power-manager or simply change a setting and save, it will sleep pretty much on schedule. Then, after some experimenting, I figured out that if I wake the system without using any keystrokes (WOL or pwr-button, e.g.) it will never sleep again unless I enter a keystroke. Somehow it would appear that without a keystroke (or possibly mouse--didn't have one handy) the timer never starts again.

Thoughts?
 
Old 11-23-2014, 08:49 AM   #9
ineloquucius
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Bueller...?
 
  


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