Steve, The reporter says the problem started on the same day as the last update:
https://launchpad.net/ubuntu/+source/pulseaudio/1:12.2-2ubuntu1 So it is a regression that occurred in an update. Or are you suggesting that tag is only for stable releases? ** Tags added: regression regression-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1816271 Title: [regression] No sound on ThinkPad T530 until activity at headphone jack(in or out/in) after about 14Feb19 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1816271/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs