Audio mutes moments before boot finishes

[Christopher]

Binary package hint: plymouth

When booting Maverick, I can see and hear my speakers being recognized (the volume knob is lit) but mutes (both internal and external speakers) just before the boot is complete. I can unmute them easily enough, but it should not be doing this.

My sound card is an Intel 82891FB/FBM/FR/FW/FRW (ICH6 Family) and my speakers a Logitech AudioHub. The USB devices attached to the AudioHub are working nominally.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: plymouth 0.8.2-2ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-15.21-generic 2.6.35.1
Uname: Linux 2.6.35-15-generic i686
Architecture: i386
Date: Fri Aug 13 13:55:15 2010
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20091225)
MachineType: LENOVO 07612GU
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   3.3V 32-bit PC Card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-15-generic root=UUID=286871c1-0aed-4b22-aea5-fd4f520f0971 ro quiet splash
ProcEnviron:
 LANG=en_CA.utf8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
SourcePackage: plymouth
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
dmi.bios.date: 09/07/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 60ET18WW (1.05)
dmi.board.name: HEL00
dmi.board.vendor: LENOVO
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: COMPAL
dmi.modalias: dmi:bvnLENOVO:bvr60ET18WW(1.05):bd09/07/2006:svnLENOVO:pn07612GU:pvr3000C100:rvnLENOVO:rnHEL00:rvr1.0:cvnCOMPAL:ct10:cvr:
dmi.product.name: 07612GU
dmi.product.version: 3000 C100
dmi.sys.vendor: LENOVO

[Steve Langasek (vorlon)]

plymouth doesn't touch the sound system. Reassigning to alsa-utils.

[Daniel T Chen (crimsun)]

Are you saying that, from a fresh boot, all outputs are muted after
logging into a GNOME session?

[Stefan Ebner (sebner)]

Setting to Confirmed as I'm seeing this issue too.

@Daniel: Yes, that's exactly what I experience

[Daniel T Chen (crimsun)]

@Stefan: Please attach output from running the amixer command in a
terminal immediately post-login.

[Christopher (soft-kristal)]

Yes. They can be un-muted easily enough; either through the sound applet or the PulseAudio Volume Control applet, but they are muted on boot.

What seems to happen is that audio is enabled early in the boot process but muted at the moment that the login sound would be played.

If log out and in again after un-muting, they remain active.

[Stefan Ebner (sebner)]

Daniel, I'm really sorry but I'm not able to reproduce it anymore.
Wondering if some kind of update fixed this O_o
Therefore setting back to Incomplete

[Christopher (soft-kristal)]

I just rebooted after all the most recent updates - same problem.

[Luke Yelavich (themuso)]

Christopher, please do what Daniel suggests in his most recent problem, i.e running alsamixer in a terminal immediately after logging in.

[David Henningsson (diwic)]

To clarify, what Daniel wants is that you follow the instructions here: https://wiki.ubuntu.com/Audio/AlsaInfo immediately after having logged in (i e when things are still "broken") and attach the result to this bug. Thanks!

[Stefan Ebner (sebner)]

Funnily after todays boot the problem occurred again so here is the log.

[Christopher (soft-kristal)]

Here's my output:

Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 63
  Mono:
  Front Left: Playback 0 [0%] [-94.50dB] [off]
  Front Right: Playback 0 [0%] [-94.50dB] [off]
Simple mixer control 'Master Mono',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 63
  Mono:
  Front Left: Playback 63 [100%] [0.00dB] [off]
  Front Right: Playback 63 [100%] [0.00dB] [off]
Simple mixer control '3D Control - Switch',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'PCM Out Path & Mute',0
  Capabilities: enum
  Items: 'pre 3D' 'post 3D'
  Item0: 'pre 3D'
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 0 [0%] [-34.50dB] [off] Capture [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Front Left: Playback 16 [52%] [-10.50dB] [off] Capture [on]
  Front Right: Playback 0 [0%] [-34.50dB] [off] Capture [on]
Simple mixer control 'Mic Boost (+20dB)',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Mic Select',0
  Capabilities: enum
  Items: 'Mic1' 'Mic2'
  Item0: 'Mic1'
Simple mixer control 'Video',0
  Capabilities: cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Capture channels: Front Left - Front Right
  Front Left: Capture [off]
  Front Right: Capture [off]
Simple mixer control 'Phone',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-exclusive penum
  Capture exclusive group: 0
  Playback channels: Mono
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono: Playback 0 [0%] [-34.50dB] [off]
  Front Left: Capture [off]
  Front Right: Capture [off]
Simple mixer control 'IEC95...

[Colin Watson (cjwatson)]

alsa-utils (1.0.23-2ubuntu2) maverick; urgency=low

  * debian/init: Restore change from 1.0.21-1ubuntu2 lost during merge
    that skips muting and zeroing levels prior to shutdown/reboot,
    which was a hack for broken drivers. This change closes LP: #21804,
    LP: #208920, #227505, #360108, #432660, #449783, #553132, #564472,
    LP: #584609, #592016, #596360, #613054, #617516, #622487, #632019.
  * debian/patches/alsactl_init_update_to_52bd2f8a_head.patch: Add
    upstream git changesets:
    dcb90a77 - Use "Found hardware:" instead "Unknown hardware:"
    7f6a55e2 - use "generic method" instead "guess method"
    52bd2f8a - Handle "Capture Source" and "Mic Boost"
    ef919a47 - Initialize also "Master Front Playback Volume" & "Switch"
    (yes, this last changeset is included despite the patch filename)

 -- Daniel T Chen <email address hidden> Sun, 05 Sep 2010 11:57:59 -0400