For me, it is a consequence of bug #1169984 related to the HDMI audio driver which prevents pm-powersave to terminate, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169984. You can check /var/log/pm-powersave.log. Before the workaround, my pm- powersave.log stopped at the nvidia hdmi audio device:
Running hook /usr/lib/pm-utils/power.d/pci_devices false: Setting Host Bridge 0000:00:00.0 to on Setting Audio device 0000:00:1b.0 to on Setting Audio device 0000:01:00.1 to on From https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1169984/comments/6, the workaround is to install latest upstream drivers according to https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS. It works for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173742 Title: Lubuntu 13.04 fails to suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1173742/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
