Mac OS X 10.6.4 Build 10F569 - Loss of audio when inserting or removing device from audio jack
Initiating pianobar while using the macbook's built in speakers, then plugging headphones into or unplugging from the headphone jack results in complete loss of sound from pianobar. The app needs to be restarted to restore sound.
I'm more than willing to provide more info, but I'm not sure what info would be needed to diagnose this. This is a consistent issue and can be replicated on my system 100% of the time.