Confirmed on a similar system. Acer Timeline U M5 481TG. This is likely upstream with alsa
Distribution: Arch AMD 64bit1 Kernel: 3.9.7-1-ARCH CPU: Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz Ram 10gb DDR3 Intel HDA PCH codec ALC271x Symptom: Combo jack does not recognize microphone only headset when plugged in. Let me know if there is any info that could help . -- 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/1128207 Title: [AO756, Realtek ALC271X, Mic, Internal] External Microphone doesn't work Status in “alsa-driver” package in Ubuntu: New Bug description: When I connect my headphones with built-in microphone using single mini-jack port sound is ok, but microphone doesn't work. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2 Uname: Linux 3.5.0-23-generic x86_64 ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: necrordian 2249 F.... pulseaudio Date: Sun Feb 17 17:23:24 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2013-02-09 (8 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True PackageArchitecture: all ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=pl_PL.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed Symptom_Card: Wbudowany dźwięk - HDA Intel PCH Symptom_Jack: Mic, Internal Symptom_Type: Only some of inputs are working Title: [AO756, Realtek ALC271X, Mic, Internal] Recording problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/19/2012 dmi.bios.vendor: Acer dmi.bios.version: V1.05 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Mimic dmi.board.vendor: Acer dmi.board.version: Type2 - Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.05 dmi.modalias: dmi:bvnAcer:bvrV1.05:bd07/19/2012:svnAcer:pnAO756:pvrV1.05:rvnAcer:rnMimic:rvrType2-BoardVersion:cvnAcer:ct10:cvrV1.05: dmi.product.name: AO756 dmi.product.version: V1.05 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1128207/+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
