I am having a similar problem and none of the suggested fixes worked for me. It seems to be an ALSA-related bug as I eventually noticed that the output from alsa-info is different before sleeping and after resuming (see attached).
** Attachment added: "after-wakeup.alsainfo" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/661640/+attachment/3439919/+files/after-wakeup.alsainfo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/661640 Title: no sound after resume from suspend [Conexant ID 2c06] PA test tone failed (alsa tone succeeded) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/661640/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
