Okay. If I add the line to /etc/pulse/default.pa as Jack said in comment #8. Then I installed gnome-alsa-mixer. I ran it from Applications-> Sound and Video-> Gnome Alsa Mixer. I check "Mute" and uncheck "Rec." under "Mic", and uncheck "Mute" and check "Rec." over towards "Internal". I also check "Internal Mic", although I'm not sure it's needed. Then I can use either the internal microphone or an external microphone.
It seems like I have to set the options in Gnome Alsa Mixer every time I restart, but it's possible that there are some other things at play that make it so for me. ** Attachment added: "Pantallazo-GNOME ALSA Mixer.png" http://launchpadlibrarian.net/48030917/Pantallazo-GNOME%20ALSA%20Mixer.png -- Pulseaudio refuses to use internal microphone input (Lenovo X300) https://bugs.launchpad.net/bugs/434520 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