This sounds like bug 1821663. But because the fix for that bug is specific to laptop/motherboard models, we should keep this bug separate.
** Package changed: alsa-driver (Ubuntu) => linux (Ubuntu) ** Summary changed: - See - [Bug 1828569] [NEW] Popping sound when audio driver engaged - [, Realtek ALC889, Green Line Out, Rear] Playback problem + [Realtek ALC889, Green Line Out, Rear] Popping sound when audio driver engaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828613 Title: [Realtek ALC889, Green Line Out, Rear] Popping sound when audio driver engaged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1828613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs