The same happen with my XPS 13. Since a couple of days I have noticed this annoying hiss. I use Ubuntu 19.04.
The workaround also fixes the issue for me (amixer -c 0 set 'Headphone Mic Boost',0 1) Regards -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654448 Title: Dell XPS 13 9350/9360 headphone audio hiss To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1654448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
