I've recently installed Ubuntu 15.04 on my Acer Aspire V3, along with pre-installed Win8.1. During installation, I enabled /home encryption. There is no problem with suspending laptop for the first time, but if I try to suspend it one more time or turn it off - it freezes. It seems to be connected with this encryption, since when I try "sudo shutdown now", terminal prints "Please enter passphrase for disk…". After giving right password, the problem disappears.
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Change your title.– A.B.Apr 24, 2015 at 18:36
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Perhaps it is encryption. It will be hard to determine for it probably happens with awake. Dunno but it might have something to do with this post Why doesn't running “sudo shutdown now” shutdown?.– VRRApr 24, 2015 at 21:41
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systemd-tty-ask-password-agent eliminates the problem too. Can it be used automatically - I mean via dialog and so on?– user1433733Apr 25, 2015 at 17:03
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