Hi, I had the same problem with this error message Device or resource busy. Command lsof /dev/dsp or /dev/audio gave me no output. But lsof | grep /dev/snd/ showed me some process using files in this directory which is used by ALSA. Killing these process solved my problem.
However it is still interesting why some programs can made ALSA busy. Dundee -- /dev/dsp busy, but no program using it https://bugs.launchpad.net/bugs/76876 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
