This issue still exists in the current Ubuntu version; when plugging in a USB head set the volume in alsamixer is at zero. Note that the volume can NOT be increased through any GUI panel, the only way to use the head set is to open a terminal, type alsamixer and then hit the F6 function key, select the head set and then increase the volume to maximum. 

Best Regards,
Han Thomas

Aware Corporation Limited

www.aware.co.th
Office: +66 (0)5326 3350 ext. 407
Cell  : +66 (0)8102 20006
Skype : Aware-Han.T

On 12 Aug 2010, at 07:33, Jeremy Foshee <email address hidden> wrote:

> This bug report was marked as Incomplete and has not had any updated
> comments for quite some time.  As a result this bug is being closed.
> Please reopen if this is still an issue in the current Ubuntu release
> http://www.ubuntu.com/getubuntu/download . Also, please be sure to
> provide any requested information that may have been missing.  To reopen
> the bug, click on the current status under the Status column and change
> the status back to "New".  Thanks.
> 
> [This is an automated message.  Apologies if it has reached you
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> 
> 
> ** Tags added: kj-expired
> 
> ** Changed in: linux (Ubuntu)
>       Status: Incomplete => Expired
> 
> -- 
> Lucid: Scale wrong for audio volume (for USB046d:0a04 speakers)
> https://bugs.launchpad.net/bugs/531063
> You received this bug notification because you are a direct subscriber
> of the bug.
> 
> Status in “linux” package in Ubuntu: Expired
> Status in “linux” source package in Lucid: Won't Fix
> 
> Bug description:
> Binary package hint: pulseaudio
> 
> The volume control on the panel only works between 90% and 100%.
> 
> 90% on the panel ===   0% PCM in alsamixer
> 100% on the panel === 100% PCM in alsamixer
> 
> I have volume buttons on my USB-speakers that change the volume by 10%. They are useless now. I need to use the mouse to move the slider one or two pixels to get the desired control.
> 
> In Ubuntu 9.10 it did work as expected.
> 
> ProblemType: Bug
> AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
> Architecture: amd64
> AudioDevicesInUse:
> USER        PID ACCESS COMMAND
> /dev/snd/controlC0:  ubuntu     3287 F.... pulseaudio
> /dev/snd/controlC1:  ubuntu     3287 F.... pulseaudio
> Card0.Amixer.info:
> Card hw:0 'Intel'/'HDA Intel at 0xfdff8000 irq 22'
>   Mixer name    : 'Realtek ALC888'
>   Components    : 'HDA:10ec0888,16f30000,00100001'
>   Controls      : 36
>   Simple ctrls  : 19
> Card1.Amixer.info:
> Card hw:1 'Speaker'/'Logitech Logitech USB Speaker at usb-0000:00:1d.1-2, full speed'
>   Mixer name    : 'USB Mixer'
>   Components    : 'USB046d:0a04'
>   Controls      : 6
>   Simple ctrls  : 5
> Card2.Amixer.info:
> Card hw:2 'HDMI'/'HDA ATI HDMI at 0xfdafc000 irq 17'
>   Mixer name    : 'ATI R6xx HDMI'
>   Components    : 'HDA:1002aa01,00aa0100,00100100'
>   Controls      : 4
>   Simple ctrls  : 1
> Card2.Amixer.values:
> Simple mixer control 'IEC958',0
>   Capabilities: pswitch pswitch-joined penum
>   Playback channels: Mono
>   Mono: Playback [off]
> CurrentDmesg:
> [   55.339883] lp: driver loaded but no devices found
> [   55.914281] ppdev: user-space parallel port driver
> [   80.270304] hda-intel: IRQ timing workaround is activated for card #2. Suggest a bigger bdl_pos_adj.
> [  491.184984] aufs au_plink_append:280:dpkg[3844]: unexpectedly many pseudo links, 101
> Date: Tue Mar  2 23:30:59 2010
> DistroRelease: Ubuntu 10.04
> LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
> Package: pulseaudio 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu10
> ProcEnviron:
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
> SourcePackage: pulseaudio
> Uname: Linux 2.6.32-14-generic x86_64
> 
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