I found this worked around the problem (Dell XPS 9360): Open alsamixer, enable sound on 'Headphone' (next to 'Master'). If there's a hissing/popping sound in the background but sound at 0 on 'Headphone Mic Boost'
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721537 Title: No sound from headphone jack on xps13 9350 after ubuntu 17.10 dist- upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1721537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs