Comment 4 for bug 923316

Hi syldeb35 and thanks for trying out the development version of Ubuntu!

Could you please try the following:
1) with sudo/root permissions, open /etc/modprobe.d/alsa-base.conf
2) add this line to the file:
options snd-hda-intel model=auto
3) Save and reboot
4) Now test and see if automute works, and if other inputs and outputs work.
5) With this new configuration, attach an alsainfo ( https://wiki.ubuntu.com/Audio/AlsaInfo )

Thanks in advance!