Yes. This behaviour is by design. I asked upstream a while ago about exactly that.
** Changed in: alsa-driver (Ubuntu) Status: Incomplete => Invalid -- [ALC888 - HDA ATI SB] Headphones don't mute master sound https://bugs.launchpad.net/bugs/655351 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs