[USB-Audio - Logitech USB Headset, playback] volume slider problem

[Ed Guenter]

Ubuntu 11.04 natty running Unity.

When changing the volume using the control buttons of my USB headset, I see:
a) when the volume is between 0 and 100% (according to the sound preferences) ... buttons work fine.
b) but when the volume is more than 100% (there is still a lot of room between the 100% mark and the
right end of the volume slider!) only the "decrease volume" button has an effect. This means:
When I put the slider to its absolute maximum, I can use my headset control to decrease the volume.
But when using the "+" key ... volume does not change (although there is some visible indication that
the button was pressed).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic-pae 2.6.38.7
Uname: Linux 2.6.38-10-generic-pae i686
NonfreeKernelModules: openafs nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: guenthne 2154 F.... pulseaudio
 /dev/snd/pcmC2D0c: guenthne 2154 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 55'
   Mixer name : 'Conexant CX20585'
   Components : 'HDA:14f15069,17aa218b,00100302'
   Controls : 8
   Simple ctrls : 5
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
   Mixer name : 'Nvidia GPU 0a HDMI/DP'
   Components : 'HDA:10de000a,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Card2.Amixer.info:
 Card hw:2 'Headset'/'Logitech Logitech USB Headset at usb-0000:0f:00.0-3, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0a02'
   Controls : 6
   Simple ctrls : 2
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT43WW-1.18'
   Mixer name : 'ThinkPad EC 6MHT43WW-1.18'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Aug 5 06:51:59 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Premium Stereo USB Headset 350 - Logitech USB Headset
Symptom_Type: Volume slider, or mixer problems
Title: [USB-Audio - Logitech USB Headset, playback] volume slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/27/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6NET74WW (1.34 )
dmi.board.name: 4389AP5
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6NET74WW(1.34):bd10/27/2010:svnLENOVO:pn4389AP5:pvrThinkPadW510:rvnLENOVO:rn4389AP5:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4389AP5
dmi.product.version: ThinkPad W510
dmi.sys.vendor: LENOVO

[Launchpad Janitor (janitor)]

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