Same issue, same system (Dell XPS13 DE HAswell - 14.04) I'm using headphones that have a mic in them, not Del, just a random model
I have noticed that when I go into sound settings, I have 3 inputs, Headset Microphone, Microphone, Internal Microphone. When I have Microphone selected, the hissing goes away, but so does all the other sound on the unmuted system -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252733 Title: [XPS 12-9Q33, Realtek ALC668, Black Headphone Out, Left] Background noise or low volume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1252733/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
