@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 Desktop Packages, which is subscribed to alsa-driver in 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) Status in alsa-driver package in Ubuntu: New Bug description: I use realtek alc255 analog audio jack. External jack is 4 pole combo(apple type. not europe type.). When I plug 4 pole mic into jack, It doesn't detect. So I can't my voice through external mic. My laptop has internal mic. It belongs to Intel sound(HDA Intel PCH. Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 21)). Internal mic works well. Please check 4pole external mic detection. Thank you. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18 Uname: Linux 4.15.0-46-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0c: jimnong 1441 F...m pulseaudio /dev/snd/pcmC0D0p: jimnong 1441 F...m pulseaudio /dev/snd/controlC0: jimnong 1441 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Mar 22 11:30:39 2019 InstallationDate: Installed on 2017-07-27 (603 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: 내장 오디오 - HDA Intel PCH Symptom_Jack: Mic, Internal Symptom_Type: No auto-switch between inputs Title: [Aspire ES1-131, Realtek ALC255, Mic, Internal] No autoswitch UpgradeStatus: Upgraded to bionic on 2018-09-23 (179 days ago) dmi.bios.date: 09/06/2016 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.24 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Garp_BA dmi.board.vendor: Acer dmi.board.version: V1.24 dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.24:bd09/06/2016:svnAcer:pnAspireES1-131:pvrV1.24:rvnAcer:rnGarp_BA:rvrV1.24:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.family: BSW dmi.product.name: Aspire ES1-131 dmi.product.version: V1.24 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1821269/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
