I have the exact same problem. I was not sure what it came from at the beginning but today it was clearly Audacity that stops my headphone port from working.
I was listening to music before through the same headphones, with different apps. As soon as I opened the same sound with Audacity, my headphone port stopped working whereas I can unplug them and use my laptop speakers. After that, even out of Audacity, I can not use my headphones with the apps that worked before then. I only hear little "breathing" sounds every time a sound/song is supposed to start, or when the sound/song is supposed to finish and the app "releases" the sound system. It takes several reboots before it eventually start working again, sometimes after a few days. I have no idea what happens but it is an extremely disrupting problem as I can not make any music without good quality headphones. I am using Ubuntu 13.10 64bits with Audacity 2.0.5 Please let me know if I can give you something else to help fix this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1257956 Title: Headphones stopped working after use of Audacity. They are detected, but no sound is produced. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1257956/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
