Regarding @shinyblue , on my configuration (lightdm/unity), sounds seems to work in all cases (new kernel 4.4.0-28-generic).
Only caveat I want to mention is that System Settings->Sound->Output shows two options with headphone connected, and selecting "Speakers. Built-in Audio" just mutes and produces no sound. I'm tempted to report that last caveat in a new bug, but I'm not sure if it was one of the original problems reported by @ivan.koptiev and he didn't realize about this current limitation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575078 Title: [XPS 15 9550, Realtek ALC3266] Headphone jack stops working after a while To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1575078/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
