5.1 subwoofer goes crazy

Bug #857452 reported by EricDHH on 2011-09-23
This bug affects 2 people
Affects Status Importance Assigned to Milestone
pulseaudio (Ubuntu)

Bug Description

Oneiric beta, packages today amd64

Soundcard is a sb audigy analog surround 5.1

The subwoofer is always at maximum, if the level was changed to something smaller nothing hearable happens. If the mixer was closed and opened again, the slider is at maximum again. The sub level is always the same, full power. Except the first minimal, there only static noise over the sound occurs.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: pulseaudio 1:0.99.3-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-11.18-genusername 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
 /dev/snd/controlC1: eric 2013 F.... pulseaudio
 /dev/snd/pcmC1D0p: eric 2013 F...m pulseaudio
 /dev/snd/timer: eric 2013 f.... pulseaudio
 Card hw:0 'Generic'/'HD-Audio Generic at 0xfdefc000 irq 43'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 4
   Simple ctrls : 1
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
 Card hw:1 'Audigy2'/'SB Audigy 2 ZS [SB0350] (rev.4, serial:0x20021102) at 0xcf00, irq 21'
   Mixer name : 'SigmaTel STAC9721,23'
   Components : 'AC97a:83847609'
   Controls : 210
   Simple ctrls : 46
CheckboxSubmission: 72ffaca291c05635776d4a13f9e644e4
CheckboxSystem: 32980ee028b29311fef8e195a759b031
Date: Fri Sep 23 16:20:46 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
 PATH=(custom, no user)
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to oneiric on 2011-09-23 (0 days ago)
dmi.bios.date: 03/22/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F10
dmi.board.name: GA-MA770T-UD3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF10:bd03/22/2011:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA770T-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA770T-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA770T-UD3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

EricDHH (ericdhh) wrote :
EricDHH (ericdhh) wrote :

Temporarly workarounded with "sudo alsamixer", but this should be user adjustable

EricDHH (ericdhh) wrote :

Lots of updates today, no change of this problem. After every reboot the subwoofer is switched to maximum.

EricDHH (ericdhh) wrote :

Updates from October,6 no change

The subwoofer is now switched back to maximum automatically, you have nothing to do.

EricDHH (ericdhh) wrote :

With updates october 13 this bug already exists. Unable to change the level, same when do this as root in alsamixer

EricDHH (ericdhh) wrote :

In full release the bug still exists, when the amplifier below the slider are switched off, it is back on if the window is only refreshed or opened new. Something in the baackground control and reset all user action there.

EricDHH (ericdhh) wrote :

Bug was fixed with rollback to 11.04, can be closed now

EricDHH (ericdhh) wrote :

1204b2 - AMD64

In 12.04b2 the output can be switch between analog/amplifier and analog/no amplifier. BUT the subwoofer ist always at full power (slider full right). You can set this to lower, but it switched back to full power from itself.

My intention is, that a slider should be slidable.

EricDHH (ericdhh) wrote :

Found this bug at the forums, it's rather old but alive

Launchpad Janitor (janitor) wrote :

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

Changed in pulseaudio (Ubuntu):
status: New → Confirmed
Daniel van Vugt (vanvugt) wrote :

Thank you for reporting this bug to Ubuntu.

Ubuntu 11.10 (oneiric) reached end-of-life on May 9, 2013.
And Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

Changed in pulseaudio (Ubuntu):
status: Confirmed → Incomplete
Launchpad Janitor (janitor) wrote :

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

Changed in pulseaudio (Ubuntu):
status: Incomplete → Expired
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