I found out the problem. By default, the mic input is muted. I don't know whether it is a bug or a deliberate choice to save power. if it is trivial, feel free to close the bug.
-- Recording does not work in Ubuntu https://bugs.launchpad.net/bugs/668673 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
