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Recently, my laptop does not suspend though I saw it going into Suspend mode when I closed the lid of my Sony Vaio. The PC just suspends for 1 second then lights on immediately. How can I resolve this problem?

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  1. Go into screen settings
  2. Make sure the "Lock Screen After:" setting is set to anything but "screen turns off"

    This option prevents the system from fully suspending

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Go to Power Settings via the task bar or System Settings and see what option you have for "When the lid is closed".

I have a Sony Vaio and it works fine for me. What series are you using and what release of Ubuntu?

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Suspend Fix for Laptop Using Ubuntu Had same problem and fixed with this script. Seems like it is a common problem, not sure why they don't fix it.

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