For fix please see towards the end of comments here. But in a nutshell, the fix consisted of:
As local user, launch hdajackretask: $ hdajackretask * Select "show unconnected pins" * Pin 0x0f override to (dropdown menu) --> Internal Speaker * Pin 0x10 override to (dropdown menu) --> Internal Speaker (LFE) * Pin 0x15 override to (dropdown menu) --> Headphone Still received message: "tee: /sys/class/sound/hwC0D0/reconfig: Device or resource busy" but the above seemed to have worked. To make this permanent click button: "Install boot override" ** Changed in: alsa-driver (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562396 Title: No sound - ALC260 snd-hda-intel on Vaio VGN-A497XP on MATE 16.4 Final Beta To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1562396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs