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How do I stop my laptop from suspending when closing the lid under lightdm - the power management settings in xfce or gnome 3 does not seem to apply when the window manager is not running.

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3 Answers 3

up vote 2 down vote accepted

At the bottom of /etc/UPower/UPower.conf, set IgnoreLid=true.

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Thanks a bunch, this works! Tested to set it and unset it again on 12.04 –  jonasl Sep 6 '12 at 18:13
    
doesn't the: "At the bottom of /etc/UPower/UPower.conf, set IgnoreLid=true." prevents any action when the lid is closed for all users? –  Jo Rijo Oct 30 '12 at 21:17
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Run

sudo vim /usr/share/polkit-1/actions/org.freedesktop.upower.policy

and replace the yes to no in the allow_active tags and replace from "yes" to "no" for inactive tags.

either

  • reboot
  • exit your X session, alt+ctrl+f1, and run sudo /etc/init.d/lightdm restart

Note: I just tested it, and restoring the values back to yes did not restore the previous functionality... no clue why.

Also, lightdm will still try to sleep, but will be denied. So every time you open the lid, you will get a message box telling the sleep/suspend failed.

this will also prohibit active suspend/sleep

...yet another annoyance that gnome3 brings us

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Thanks for the research, looks like it cant be completly sovled without the hickups you mention –  jonasl Aug 17 '12 at 12:29
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Changing allow_active to no disable suspend for everything. I can't find better way to solve this but to switch to another console by pressing CTRL+ALT+F1 and then close the lid.

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