seem you are not using alsa-driver since dB range of headphone is different from speakers
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/?qt=grep&q=cs4208 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1255370 Title: MacBookPro11,1 (Late 2013 Haswell) has no sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1255370/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs