[System Product Name, VIA VT1708S, Green Line Out, Rear] No sound at all

[Alistair Buxton]

No sound at all unless I select "Independent HP ON". This indicates that something is muting the line out because it believes headphones are connected when they are in fact not connected. There seems to be several similar bugs but I cannot say for sure if they are the same issue.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC3: al 2025 F.... pulseaudio
 /dev/snd/controlC1: al 2025 F.... pulseaudio
 /dev/snd/controlC0: al 2025 F.... pulseaudio
                      al 22129 F.... alsamixer
Date: Sun Nov 18 09:17:22 2012
InstallationDate: Installed on 2012-11-08 (9 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB failed
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC3: al 2025 F.... pulseaudio
 /dev/snd/controlC1: al 2025 F.... pulseaudio
 /dev/snd/controlC0: al 2025 F.... pulseaudio
                      al 22129 F.... alsamixer
Symptom_Jack: Green Line Out, Rear
Symptom_Type: No sound at all
Title: [System Product Name, VIA VT1708S, Green Line Out, Rear] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0704
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A79XTD EVO
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.:bvr0704:bd11/25/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A79XTDEVO:rvrRevX.0X:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Raymond (superquad-vortex2)]

when independent hp is OFF and headphon is plugged . it is normal that rear line out is muted be default

dou you mean hp jack detect is incorrect

Simple mixer control 'Independent HP',0
  Capabilities: enum
  Items: 'OFF' 'ON'
  Item0: 'OFF'

 control.43 {
  iface CARD
  name 'Front Headphone Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }

[Raymond (superquad-vortex2)]

vt1708s is a 8 channel codec

as your motherboard has a grey jack

when independent hp is ON

only support 5.1 by rear panel and hp use 0x25 audio output

Node 0x1d [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
  Control: name="Headphone Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Independent HP", index=0, device=0
  Control: name="Front Headphone Jack", index=0, device=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0000233c: IN OUT HP Detect
    Vref caps: HIZ 50 100
  Pin Default 0x0221401f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0xc0: OUT HP VREF_HIZ
  Unsolicited: tag=01, enabled=1
  Power states: D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x16* 0x25

Simple mixer control 'Headphone',0
  Capabilities: pswitch penum
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]

  off: Off (priority 0)
 active profile: <output:analog-stereo>
 sinks:
  alsa_output.pci-0000_00_14.2.analog-stereo/#1: Built-in Audio Analogue Stereo
 sources:
  alsa_output.pci-0000_00_14.2.analog-stereo.monitor/#2: Monitor of Built-in Audio Analogue Stereo
 ports:
  analog-output: Analogue Output (priority 9900, available: unknown)
   properties:

  analog-output-headphones: Headphones (priority 9000, available: yes)
   properties:

[Alistair Buxton (a-j-buxton)]

yes. hp jack detect is incorrect. when independent HP OFF, no sound from rear panel. no headphones are connected.

[Raymond (superquad-vortex2)]

do your computer chassis have a hda front audio panel ?

http://www.intel.com/support/motherboards/desktop/sb/CS-020642.htm#ac97

did you set the correct front audio panel type in bios setup ?

[Alistair Buxton (a-j-buxton)]

board and case both support both types. here is the result of trying every possible combination:

BIOS: AC97 CASE: AC97 HP connected: NO - audio from rear panel
BIOS: AC97 CASE: AC97 HP connected: YES - audio from rear panel and headphone
BIOS: AC97 CASE: HDA HP connected: NO - audio from rear panel
BIOS: AC97 CASE: HDA HP connected: YES - audio from rear panel and headphone
BIOS: HDA CASE: AC97 HP connected: NO - audio from rear panel
BIOS: HDA CASE: AC97 HP connected: YES - audio from rear panel and headphone
BIOS: HDA CASE: HDA HP connected: NO - NO AUDIO from rear panel
BIOS: HDA CASE: HDA HP connected: YES - audio from headphone only

[Raymond (superquad-vortex2)]

do you mean the headphone jack control remain true even when the headphone is unplugged?

amixer -c0 contents

[Raymond (superquad-vortex2)]

did misc bit is set in node 0x1d or unsol event enabled.after you select using ac97 front audio panel in bios ?

Misc = NO_PRESENCE

you may need to ask in alsa devel mailing list since it is not easy to debug when there is jack event to power down those unused widget

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]