This might be fixed in the upstream 3.12-rc4 kernel, thanks to this committ:
author Takashi Iwai committer Takashi Iwai commit 4a4370442c996be0fd08234a167c8a127c2488bb tree 274101ba9518fd1f295f90e9db45ae64df8825cc parent dfc2cd7c284aa2dc88b5edbdd08645517a747d37 ALSA: hda - Fix GPIO for Acer Aspire 3830TG Acer Aspire 3830TG seems requiring GPIO bit 0 as the primary mute control. When a machine is booted after Windows 8, the GPIO pin is turned off and it results in the silent output. This patch adds the manual fixup of GPIO bit 0 for this model. Reported-by: Christopher Cc: stable Signed-off-by: Takashi Iwai A PPA of the 3.12-rc4 kernel can be found at http://kernel.ubuntu.com /~kernel-ppa/mainline/ and instructions on how to install and uninstall it are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds -- 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/1160737 Title: [Aspire 3830TG, Conexant CX20588, Speaker, Internal] No sound at all Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: I am not getting any sound whatsoever. Booted from the Ubuntu 12.10 Live USB ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5 Uname: Linux 3.5.0-17-generic x86_64 ApportVersion: 2.6.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 3192 F.... pulseaudio CasperVersion: 1.328 Date: Wed Mar 27 07:05:02 2013 LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 3192 F.... pulseaudio Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [Aspire 3830TG, Conexant CX20588, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/16/2012 dmi.bios.vendor: Acer dmi.bios.version: V1.10 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: JM30_HR dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.10 dmi.modalias: dmi:bvnAcer:bvrV1.10:bd03/16/2012:svnAcer:pnAspire3830TG:pvrV1.10:rvnAcer:rnJM30_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.10: dmi.product.name: Aspire 3830TG dmi.product.version: V1.10 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1160737/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
