I installed an Xubuntu 14.04 image from HugeGreenBug and my audio stopped working after I rebooted during an upgrade a few hours after installation. I've looked at posts about this here and tried deleting my PulseAudio configuration, uninstalling alsa and pulse audio, restarting alsa, etc.
The problem started after I rebooted while updating packages, and VLC uninstallled itself. Audio was working at that point, but quit after reinstalling VLC and rebooting. Here is my alsa info script output.