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When I close the screen of my netbook in Kubuntu, it doesn't lock when I reopen, and when I press the lock button, nothing happens. I have KScreenSaver configured, and all the drivers work fine, so how do I get my computer to lock?

2 Answers 2

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i had to install the laptop-mode-tools package to get mine to lock.

i've now been able to set up my laptop to hibernate on lid close without any trouble.

use muon-package manager or sudo apt-get install laptop-mode-tools to install

EDIT: i've noticed an issue hibernating after my update to precise and thought it was just a hick-up caused by one my customization. but it's a "feature" added to 12.04.

From 12.04, hibernation is disabled by default for all Ubuntu OSes, you need to create a file and add some configuration data to it as per this official page.

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Activate krunner at start of KDE, log out and log in. (System settings -> Startup & sessions (?) -> Autostart) ... or run krunner (in konsole) and test again.

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