I'm seeing the same problem on my XPS 9550, running Yakkety under kernel 4.8.0-17. I've had this problem for a lot longer, though. Headset detection doesn't work at all. Upon bootup audio is OK. after plugging in a pair of headphone (with MIC in the wire) all audio is killed, permanently, until after a reboot.
-- 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
