Putting options snd-hda-intel model=hp position_fix=1 enable=yes at the end of file /etc/modprobe.d/alsa-base helped.
-- sound: PCM channel is always off after reboot or after suspend https://bugs.launchpad.net/bugs/84038 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs