@JackyOhh and @dharman I didn't do anything at all. It just works out of the box for me. However, you might try to increase the mic volume with PulseAudio Volume Control.
And now, I have another problem (which I had never tested it before), there is no audio output through HDMI. I reported the bug here: https://bugzilla.kernel.org/show_bug.cgi?id=214923 ** Bug watch added: Linux Kernel Bug Tracker #214923 https://bugzilla.kernel.org/show_bug.cgi?id=214923 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523100 Title: Alsa not detecting internal microphone [ALC255] (Realtek) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1523100/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
