Strange behaviour: now it works. The only thing I've changed is that I configured shorewall firewall that before was installed but not configured.
Still some errors are showed in dmesg ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173843/+attachment/3657160/+files/dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173843 Title: Kubuntu 13.04 power off doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
