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I have upgraded to Ubuntu 14.04LTS from 13.10. Before upgrade sound was working fine, but after that its not working.Before trying below reference sound was working only through headphone but after below these reference sound not working neither through headphone nor speakers(in-build). I tried solving from below reference link.
And i have attached logs for pulseaudio to the below reference link.
but after this sound icon always showing mute which was showing near battery icon, but when checked from system settings->sound->output volume its showing unmuted. I tried changing from mute to unmute from icon near battery icon but its not changing. And after playing videos its showing "An error occurred Could not initialize supporting library" error message is coming. Please suggest how to resolve this issue.