Summarizing, to fix sound distortion it's necessary to apply two fixes, one for alsa and other for pulseaudio. Pulse config change retains after reboot and possibly "survives" pulseaudio package upgrade(s).
Alsa need mute fix to be re-applied after reboot, and it can be done automatically. Add line /usr/bin/amixer -c 2 sset 'Auto-Mute Mode' 'Disabled' > /dev/null to /etc/rc.local file before line "exit 0", where "-c 2" is number of sound card in my system and may vary in yours. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1203235 Title: [H87N-WIFI, Realtek ALC892, Green Line Out, Rear] Underruns, dropouts or crackling sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1203235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
