I have the same issue on my Dell G3 3590 I "fixed" output (https://www.linuxuprising.com/2018/06/fix-no-sound- dummy-output-issue-in.html), on similar way as others, but input / internal microphone remains undetected (unplugged, as pulse audio says).
External microphone works fine and it saves me for now. Ubuntu version: 18.04.4 Kernel version: 5.0.0-1043-oem-osp1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840725 Title: Microphone not working in Ubuntu 18.04.3 LTS on new hp- spectre-x360-convertible-15 laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1840725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs