Public bug reported: Description: In 11.10, my audio worked perfectly. However, in 12.04, on my intel HD audio, I can only get output from the front panel headphones output. None of the outputs on the back panel work.
There are some unusual symptoms. For example, the "headphone" checkbox is always checked, and if I uncheck it, it mutes all sound (systray icon shows muted). Even if I mess with all sliders, muting and unmuting them, the back outputs won't work. Attempts to fix, in no order: -run from liveCD -purge + reinstall alsa and pulseaudio -all combinations of settings in alsa-mixer, pavucontrol, sound control panel -disable + re-enable intel-hda in BIOS -all suggestions on the soundtroubleshooting and hdaintal sound wiki pages: https://help.ubuntu.com/community/SoundTroubleshooting https://help.ubuntu.com/community/HdaIntelSoundHowto ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 NonfreeKernelModules: fglrx AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: aaron 2462 F.... pulseaudio /dev/snd/controlC0: aaron 2462 F.... pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfbcf4000 irq 16' Mixer name : 'VIA VT1708S' Components : 'HDA:11060397,1043836c,00100000' Controls : 45 Simple ctrls : 22 Card1.Amixer.info: Card hw:1 'Generic'/'HD-Audio Generic at 0xfbdbc000 irq 43' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 6 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Fri Apr 20 14:43:15 2012 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver UpgradeStatus: Upgraded to precise on 2012-04-16 (4 days ago) dmi.bios.date: 06/28/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2104 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A77TD dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2104:bd06/28/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A77TD:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/986403 Title: No sound output except for headphone output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/986403/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
