Thank you Alex, your comment #15 helped me find out that I had specified model=mbp3 in /etc/modprobe.d/options.conf when trying to debug my sound with a previous ALSA version. Removing that file made it choose the mb5 model - and guess what: automute works now.
Thank you Alex, your comment #15 helped me find out that I had specified model=mbp3 in /etc/modprobe. d/options. conf when trying to debug my sound with a previous ALSA version. Removing that file made it choose the mb5 model - and guess what: automute works now.