It is weird that you could record sound with a pure headphone, I have no idea how that happened.
And could you please test: run amixer sset 'Input Source' "Headset Mic" or "Rear Mic" or "Line" first, then plug in the headphone and choose headphone, does the sound output from headphone? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875032 Title: [Vostro 3470, Realtek ALC891, Black Headphone Out, Front] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1875032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
