[Lenovo T530]: Volume Mute key LED is not responding correctly

[Jeff Marcom]

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

[Brad Figg (brad-figg)]

This change was made by a bot.

[Chris Johnston (cjohnston)]

It works fine for me so far on my brand new T530 running Raring

[Chris Johnston (cjohnston)]

I am now effected by this.

[penalvch (penalvch)]

Jeff Marcom, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (2.57). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Joseph Salisbury (jsalisbury)]

This bug was nominated against a series that is no longer supported, ie raring. The bug task representing the raring nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

This bug was nominated against a series that is no longer supported, ie quantal. The bug task representing the quantal nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Jackson Doak (noskcaj)]

This is working fine in Ubuntu 20.10

[Steve Langasek (vorlon)]

The Precise Pangolin has reached end of life, so this bug will not be fixed for that release