@hui.wang After #12, I tried to generate new alsa-info.txt file. Please check attachment file again.
I confirmed that there is "snd_hda_intel: model = lifebook-extmic" entry in the "Modprobe options" category. But apple 4 pole earset's mic is still not working. Thank you for your sincere effort. ** Attachment added: "alsa-info.txt.LhKA0UjBF3" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1821269/+attachment/5265952/+files/alsa-info.txt.LhKA0UjBF3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821269 Title: [Aspire ES1-131, Realtek ALC255, Mic, Internal] No autoswitch (4-pole combo jack mic doesn't detect) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1821269/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
