[USB-Audio - Generic USB Audio Device, playback] volume control slider - no sound in some range

[juras]

Sound only starts at some range (2/3 approx). The remaining part is short, resulting in bigger steps of volume increase and sensitivity.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: juras 14291 F.... pulseaudio
 /dev/snd/pcmC1D0p: juras 14291 F...m pulseaudio
 /dev/snd/controlC0: juras 14291 F.... pulseaudio
 /dev/snd/pcmC0D0c: juras 14291 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 44'
   Mixer name : 'SigmaTel STAC9205'
   Components : 'HDA:838476a0,102801f1,00100204 HDA:14f12c06,14f1000f,00100000'
   Controls : 18
   Simple ctrls : 11
Card1.Amixer.info:
 Card hw:1 'Device'/'Generic USB Audio Device at usb-0000:00:1d.1-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB0d8c:000c'
   Controls : 7
   Simple ctrls : 3
Date: Tue Nov 1 19:01:43 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio Adapter - Generic USB Audio Device
Symptom_Type: Volume slider, or mixer problems
Title: [USB-Audio - Generic USB Audio Device, playback] volume slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/11/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0KY768
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd07/11/2008:svnDellInc.:pnInspiron1520:pvr:rvnDellInc.:rn0KY768:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1520
dmi.sys.vendor: Dell Inc.

[juras (kornyz)]

My observations:
1. Put the volume down to 0 in Unity UI
2. Open alsamixer
3. Increase volume in alsamixer by 1
4. Volume slider in Unity UI reads approx 2/3, still no sound though
5. Increase volume in alsamixer by 1, sound appears
6. Continue increasing sound in alsamixer:
  - Sound level 4 doesn't exist, it skips from 3 to 5
  - Level 5 and 6 seem to be exatly the same, even though dB gain reads increasing as normal
  - Level 9 doesn't exist
  - Level 10 and 11 same
  - Level 13 missing
  - ... Enough :)

[Launchpad Janitor (janitor)]

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

[Raymond (superquad-vortex2)]

post the output of alsa-info.sh

https://wiki.ubuntu.com/Audio/AlsaInfo‎

pactl list

[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.]