What sound devices do you have enabled? Any inputs (aux or microphone) configured?
Does the sound appear in a recording?
Could you post a log file? (i.e. ~/.mixxx/mixxx.log right after shutting down mixxx when it happens)
Is this repeatable or intermittent?
What sound devices do you have enabled? Any inputs (aux or microphone) configured?
Does the sound appear in a recording?
Could you post a log file? (i.e. ~/.mixxx/mixxx.log right after shutting down mixxx when it happens)
Is this repeatable or intermittent?