Please remove any changes done in hdajackretask or /etc/modprobe.d/alsa-base.conf (if any), install this DKMS (under a 3.13 kernel), reboot, plugin headset jack. Now try recording and check the result. If the recording result is different from previous recording, please attach it.
Also an alsa-info taken during recording would be appreciated. Thanks! ** Attachment added: "oem-audio-hda-daily-dkms_0.1_all.deb" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1414706/+attachment/4316175/+files/oem-audio-hda-daily-dkms_0.1_all.deb ** Changed in: alsa-driver (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1414706 Title: [20ALCTO1WW, Realtek ALC292, Black Mic, Left][Lenovo ThinkPad X240] external mic has no sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1414706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs