I have seen this a number of times: If I boot the laptop on battery then attach a mains supply the popping usually stops, but not always. If I remove and then re-add the mains supply then it does stop.
It seems highly likely that the problem lay in power management somewhere. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1021509 Title: Random popping when on battery To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1021509/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs