refer to hda specification 7.4.1 Standard Audio 48-Pin Codec Packages
1. PORT-A must have output capability. 2. If the codec has headphone capability, it must be available on PORT-A at a minimum. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/976076 Title: Can't switch between speakers and headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/976076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs