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I have a Dell Latitude E5420M running Kubuntu 13.04 (now 14.04). I have it set to suspend to RAM whenever it detects a lid close. Quite often, whenever I wake it up (lid open), the computer stays active for 5-10 seconds (fully operational) and then returns to sleep without me closing the lid. I can wake it up afterward, at which point it functions normally.

I have turned the Internet inside out trying to find a solution to this, but I have found absolutely nothing.

I have noticed this behavior with Kubuntu 12.04 LTS as well (before I got a new hard drive), although it did not happen as often.

Edit: I recently updated to 14.04, but I still experience this behavior.

  • I recently updated to 14.04, but I still experience this behavior. – hal7df Jun 23 '14 at 15:00
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Try editing the /etc/systemd/logind.conf

uncomment the line #HandleLidSwitch=suspend and change the value to ignore

This work for me.

| improve this answer | |
  • Okay... but this breaks lid close actions. Note that I still need the computer to sleep after the lid closes. The problem I am having is that it goes back to sleep after I wake it up without me closing the lid. – hal7df Jul 13 '14 at 17:17
  • It still goes to sleep for me. Have you make sure that the setting is set to sleep under power management settings? – angun33 Jul 15 '14 at 8:05
  • Yes, it is set to sleep on lid close. – hal7df Jul 15 '14 at 14:31
  • I have the same problem, and I tested this solution. It seems that it works, but I have to test it further. – sazary Jan 6 '15 at 18:17

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