https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_realtek.c?id=73bdd597823e2231dc882577dbbaf8df92fe1775
you need to use debug version of alsa driver to check the system log to find out whether your codec alc292 can automatcally differentiate headset and headphone as your thinkpad does not support conventional mic http://voices.canonical.com/david.henningsson/2014/03/07/headset-jacks- on-newer-laptops/ -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
