Public bug reported: With all kernel versions so far tested including mainline v4.15.4 the audio device permanently disappears even after a cold reboot once the headphones have been plugged/unplugged.
Looks to be a firmware issue; latest firmware has been installed but issue remains. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1752376 Title: Dell Vostro 5568 - Sound device disappears after connecting headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1752376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs