Please file separate bugs for the two issues in this report. I'm marking this one a duplicate of bug 274995, because it's the more serious one. As for the crackling, it's possibly a pulseaudio issue; need more info.
Please file separate bugs for the two issues in this report. I'm marking this one a duplicate of bug 274995, because it's the more serious one. As for the crackling, it's possibly a pulseaudio issue; need more info.