Cannot sleep/standby in Ubuntu 12.04

Posted by mstaessen on Ask Ubuntu See other posts from Ask Ubuntu or by mstaessen
Published on 2012-03-29T09:58:46Z Indexed on 2012/03/29 11:42 UTC
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Filed under:

gnome3

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12.04

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sleep

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power

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standby

Yesterday, I installed Ubuntu 12.04 Desktop i386 on my netbook (HP Mini 311c).

I am unable to use the sleep mode. When I press the suspend button (or do sudo pm-suspend), the screen flickers but the computer does not power off. Even worse, the screen comes back up and I'm back where I left off.

Hibernating does work (although it is not available in Power Management). I have to use pm-hibernate to make that work.

I'm using the 3.2.0.20 kernel and Gnome 3.3.92 (Unity, especially compiz, is a resource hog).

Before Ubuntu 12.04, I was using Mint Linux 12 with the 3.0 kernel and everything worked fine back then. Any help is much appreciated because this is driving me crazy.

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