[USB-Audio - C-Media USB Headphone Set, playback] volume slider problem/ No sound on this and lower volume levels

[de-raphi]

There is no Sound if I set the volume to a level lower than approximatelly 25%. If i set it higher than 25% it is already very very loud.

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 x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: raphael 2545 F.... pulseaudio
 /dev/snd/controlC2: raphael 2545 F.... pulseaudio
 /dev/snd/pcmC2D0p: raphael 2545 F...m pulseaudio
 /dev/snd/controlC0: raphael 2545 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfcff8000 irq 46'
   Mixer name : 'VIA VT1708S'
   Components : 'HDA:11060397,1043837a,00100000'
   Controls : 37
   Simple ctrls : 21
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xfe9fc000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Card2.Amixer.info:
 Card hw:2 'Set'/'C-Media USB Headphone Set at usb-0000:00:1a.1-2, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB0d8c:000c'
   Controls : 7
   Simple ctrls : 3
Date: Thu Oct 27 20:54:43 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio Adapter - C-Media USB Headphone Set
Symptom_Type: Volume slider, or mixer problems
Title: [USB-Audio - C-Media USB Headphone Set, playback] volume slider problem
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (12 days ago)
dmi.bios.date: 03/31/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0801
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5Q SE2
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.:bvr0801:bd03/31/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QSE2:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Launchpad Janitor (janitor)]

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

[Peter Lundqvist (peterl)]

The Alsa sound level works just fine (if I use alsa-mixer or gnome-alsa-mixer) but the gnome master volume level works as described. That would point to pulse-audio introducing some offset?

[Peter Lundqvist (peterl)]

Picture describes gnome sound & gnome-alsa-mixer. Volume is set using gnome volume settings.

Gray sliders is the setting with no sound. Red sliders is the setting with sound.
To clarify: Alsa soundlevel is zero when gnome volume setting is aprox 25%.

[Raymond (superquad-vortex2)]

post the output of alsa-info.sh

"lsusb -vvvv" of your usb audio device

and the pulseaudio verbose log when you reduce the volume

https://wiki.ubuntu.com/PulseAudio/Log

[Raymond (superquad-vortex2)]

 ports:
  analog-output-speaker: Analog Speakers (priority 10000, available: unknown)
 active port: <analog-output-speaker>

[Andy Freeland (rouge8)]

I have the same problem.

also-info: http://www.alsa-project.org/db/?f=b91c1e12cf385fa35860426cd6ebff9c860e7d9b

Pulseaudio log attached.

lsusb output:

Bus 002 Device 026: ID 0d8c:000c C-Media Electronics, Inc. Audio Adapter
Couldn't open device, some information will be missing
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x0d8c C-Media Electronics, Inc.
  idProduct 0x000c Audio Adapter
  bcdDevice 1.00
  iManufacturer 0
  iProduct 1
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 253
    bNumInterfaces 4
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower 100mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 0
      bInterfaceClass 1 Audio
      bInterfaceSubClass 1 Control Device
      bInterfaceProtocol 0
      iInterface 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 1 (HEADER)
        bcdADC 1.00
        wTotalLength 100
        bInCollection 2
        baInterfaceNr( 0) 1
        baInterfaceNr( 1) 2
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 1
        wTerminalType 0x0101 USB Streaming
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 2
        wTerminalType 0x0201 Microphone
        bAssocTerminal 0
        bNrChannels 1
        wChannelConfig 0x0001
          Left Front (L)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 6
        wTerminalType 0x0301 Speaker
        bAssocTerminal 0
        bSourceID 9
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 7
        wTerminalType 0x0101 USB St...

[Raymond (superquad-vortex2)]

dBmax is negative

USB Mixer: usb_id=0x0d8c000c, ctrlif=0, ctlerr=0
Card: C-Media USB Headphone Set at usb-0000:00:1d.0-1.1.3, full speed
  Unit: 9
    Control: name="Speaker Playback Volume", index=0
    Info: id=9, control=2, cmask=0x3, channels=2, type="S16"
    Volume: min=-7264, max=-16, dBmin=-2837, dBmax=-6

[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.]