When playing a sound on my laptop, the sound works well on the headphones, but not on the laptop's speaker. When I increse the volume, it doesn't increase progressively but jerkily. Moreover, the sound plays on the subwoofer speaker and not on the main speakers.

Bug #458056 reported by JazZ
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
pulseaudio (Ubuntu)
Incomplete
Undecided
Unassigned

Bug Description

Binary package hint: pulseaudio

Ubuntu 9.10 (updated on 21/10/09)
Laptop : Dell Inspiron 9400 (Centrino Duo 2GHz, 2go memory, Nvidia 7900GS...)

happened result : When the volume is minimum, I don't hear any sound (its normal). When I increase the volume, I doesn't hear anything. When the volume increasing go over a threshold, the sound works suddenly high ! Moreover, this sound works only on the subwoofer, and not on the main speakers.

expected result : When I increase the volume progressively, the sound should be increased progressively, and on all my speakers. Note that this problem doesn't appear on the headphones.

ProblemType: Bug
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jason 2234 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 21'
   Mixer name : 'SigmaTel STAC9200'
   Components : 'HDA:83847690,102801cd,00102201 HDA:14f12bfa,14f100c3,00090000'
   Controls : 13
   Simple ctrls : 7
CheckboxSubmission: e335d3116a7771b567bbb1a8dd134518
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Thu Oct 22 12:10:23 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: pulseaudio 1:0.9.19-0ubuntu3
ProcEnviron:
 LANGUAGE=fr_FR.UTF-8
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-14-generic i686
UserAsoundrc:
 # ALSA library configuration file

 # Include settings that are under the control of asoundconf(1).
 # (To disable these settings, comment out this line.)
 # </home/jason/.asoundrc.asoundconf>

Revision history for this message
JazZ (misterj-home) wrote :
Revision history for this message
Alberto Torres (kungfoobar) wrote :

Same as bug #441195

Revision history for this message
fullphil (fullphil) wrote :

Same issue for me, same Inspiron 9400.
Also is the issue that the sound plays on the subwoofer speaker and not on the main speakers a duplicate with Bug 441195 ? In fact it happens only with ouput = Analog Stereo. No sound at all with output = Digital Stereo (IEC958)

Revision history for this message
Daniel T Chen (crimsun) wrote : Re: [Bug 458056] Re: When playing a sound on my laptop, the sound works well on the headphones, but not on the laptop's speaker. When I increse the volume, it doesn't increase progressively but jerkily. Moreover, the sound plays on the subwoofer spea

Is this symptom reproducible after installing
linux-backports-modules-alsa-karmic-generic and rebooting?

Revision history for this message
fullphil (fullphil) wrote :

I tried to install linux-backports-modules-alsa-karmic-generic, reboot, but same issue.

Revision history for this message
JazZ (misterj-home) wrote :

I tried also to install linux-backports-modules-alsa-karmic-generic with no effect.

Note that the panel to configure the sound was very simplified. Before 9.10, we could personalize the sound with the specific speakers of the laptop. We could also choose between pulseaudio, alsa or others sound server. I am very surprised of this regression, considering that this default configuration is not very adapted...

Revision history for this message
fullphil (fullphil) wrote :

Hi, I finally solved the issue.
All I did was to run alsamixer, and put all the items to 100% (Master, PCM, LFE)

Revision history for this message
Daniel T Chen (crimsun) wrote :

Can you reproduce this symptom using the most current daily-live desktop Lucid image?

Changed in pulseaudio (Ubuntu):
status: New → Incomplete
Revision history for this message
MvW (2nv2u) wrote :

Yes this issue still remains in lucid as well

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