you have to post the pulseaudio verbose log since there is no headphone playback volume and speaker playback volume
how do pulseaudio know the headphone and speaker share "Front playback Volume" control ? Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 42 Mono: Playback 16 [38%] [-39.00dB] [on] Simple mixer control 'Headphone',0 Capabilities: pswitch penum Playback channels: Front Left - Front Right Mono: Front Left: Playback [on] Front Right: Playback [on] Simple mixer control 'Speaker',0 Capabilities: pswitch penum Playback channels: Front Left - Front Right Mono: Front Left: Playback [on] Front Right: Playback [on] Simple mixer control 'Bass Speaker',0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left - Front Right Limits: Playback 0 - 42 Mono: Front Left: Playback 42 [100%] [0.00dB] [on] Front Right: Playback 42 [100%] [0.00dB] [on] Simple mixer control 'PCM',0 Capabilities: pvolume penum Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 252 [99%] [0.60dB] Front Right: Playback 252 [99%] [0.60dB] Simple mixer control 'Front',0 Capabilities: pvolume penum Playback channels: Front Left - Front Right Limits: Playback 0 - 42 Mono: Front Left: Playback 42 [100%] [0.00dB] Front Right: Playback 42 [100%] [0.00dB] -- 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/1274401 Title: Internal sub-woofer on Asus G75VW laptop doesn't work. Status in “alsa-driver” package in Ubuntu: Incomplete Bug description: The internal sub-woofer does not work on the Asus G75VW series laptop. It has no usable controls in the Sound Settings window and sound does not come from the internal sub-woofer when testing it with Rhythmbox, youtube.com video and audio, or Audacious. Ubuntu Version: Ubuntu 12.04.4 LTS - Linux Version - linux: Installed: (none) Candidate: 3.2.0.58.69 Version table: 3.2.0.58.69 0 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages 3.2.0.23.25 0 500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-58-generic 3.2.0-58.88 ProcVersionSignature: Ubuntu 3.2.0-58.88-generic 3.2.53 Uname: Linux 3.2.0-58-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: crosswalk 2018 F.... pulseaudio /dev/snd/controlC0: crosswalk 2018 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf7310000 irq 44' Mixer name : 'VIA VT1802' Components : 'HDA:11068446,10431487,00100000' Controls : 31 Simple ctrls : 18 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xf7080000 irq 17' Mixer name : 'Nvidia GPU 42 HDMI/DP' Components : 'HDA:10de0042,10432119,00100100' Controls : 12 Simple ctrls : 2 Date: Thu Jan 30 02:12:06 2014 HibernationDevice: RESUME=UUID=9e120375-84ba-4393-a169-35f243c10efa InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: ASUSTeK COMPUTER INC. G75VW MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-58-generic root=UUID=eb4a342d-0d1e-421f-a355-5fb8eb65bb15 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding. RelatedPackageVersions: linux-restricted-modules-3.2.0-58-generic N/A linux-backports-modules-3.2.0-58-generic N/A linux-firmware 1.79.9 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/21/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: G75VW.218 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: G75VW dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG75VW.218:bd08/21/2012:svnASUSTeKCOMPUTERINC.:pnG75VW:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VW:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: G75VW dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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