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I've neither suspend to ram nor to disk in 12.10 lubuntu (i suspect there might be a kernel issue but i'm only a simple user). Also, the xfce powermanagement which comes with lubuntu by default does not have any effect. Even it doesn't lock the screen when i set this in the preferences: What do when close the lid.

So, on a portable that's annoying a lot. Is there some way to workaround by scripts in etc/pm/*.d?

Searching around i found something interesting in my syslog:

laptop-mode: Warning: Configuration file /etc/laptop-mode/conf.d/board-specific/*.conf is not readable, skipping.

And then:

laptop-mode: enabled, not active

The "incriminated" directory /board.specific/, in my computer does simply not exist! Now, i don't seem to be the only one affected by this problem. There is something like a bug filing against this in Debian. May be, someone knows how to overcome this problem?

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Try sudo apt-get install powernap followed by pm-suspend or pm-hibernate –  Capt.Nemo Oct 28 '12 at 10:41
    
Thanks for sharing the idea. Unfortunately it did not have any effect. –  J.-S. Farinet Oct 28 '12 at 13:21
    
Does anything happen when you try to suspend? Post your /var/log/syslog on paste.ubuntu.com and add the link to the question so we can help you out. –  Capt.Nemo Oct 28 '12 at 14:35
    
Done. It's pasted as 'paste.ubuntu.com/1315305' –  J.-S. Farinet Oct 29 '12 at 14:25
    
You need to add this information into your question, not buried in the comments, that way your question is bumped! –  Jorge Castro Nov 10 '12 at 13:11
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1 Answer

This is a duplicate question, I'll just send you in the right direction... I hope.

In Ubuntu 12.04 and newer, hibernation has been disabled by default in policykit.

Follow the indications posted here

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