Public bug reported:
Problem description:
When attempting a hardware mute the volume mute action is applied
correctly and the volume applet correctly displays that the audio output
is muted. However, the mute key's LED backlight's responsiveness is
flaky at best. Pressing the mute key repeatedly may or may not result in
an mute key LED change. This can quickly get out of sync where it's
possible for the mute key LED to be lit yet the volume is not actually
muted.
Again mute action does actually respond correctly via keypress:
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
Playback channels: Mono
Limits: Playback 0 - 87
Mono: Playback 63 [72%] [-18.00dB] [on]
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
Playback channels: Mono
Limits: Playback 0 - 87
Mono: Playback 63 [72%] [-18.00dB] [off]
Software mute does not change status of LED.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-37-generic 3.2.0-37.58
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1621 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf2530000 irq 46'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:10ec0269,17aa21f6,00100203
HDA:80862806,80860101,00100000'
Controls : 41
Simple ctrls : 15
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
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: Thu Feb 14 13:33:49 2013
HibernationDevice: RESUME=UUID=33af243d-8694-4458-a1eb-5c94d7303d8e
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120823.1)
MachineType: LENOVO 235923U
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic
root=UUID=212db818-8dcd-4bbd-94a9-0a9ca8d086a3 ro quiet splash initcall_debug
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-37-generic N/A
linux-backports-modules-3.2.0-37-generic N/A
linux-firmware 1.79.1
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/29/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: G4ET37WW (1.12 )
dmi.board.asset.tag: Not Available
dmi.board.name: 235923U
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:bvrG4ET37WW(1.12):bd05/29/2012:svnLENOVO:pn235923U:pvrThinkPadT530:rvnLENOVO:rn235923U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 235923U
dmi.product.version: ThinkPad T530
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Canonical Hardware Enablement Team (canonical-hwe-team)
Status: Confirmed
** Tags: amd64 apport-bug precise quantal raring running-unity staging
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Hardware Enablement Team
(canonical-hwe-team)
** Tags added: quantal raring
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https://bugs.launchpad.net/bugs/1125452
Title:
[Lenovo T530]: Volume Mute key LED is not responding correctly
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