[Lenovo Thinkpad SL510] Mute buttons don't work

[Daniel Manrique]

201011-6830.

This laptop has dedicated buttons to mute both output (speakers/headphones) and input (internal/external microphone). Neither button works; they don't even generate a keycode. Other dedicated buttons on the same panel (volume up/down) work correctly.

This was tested on fully-updated Ubuntu 12.04, as well as a daily Quantal image with 3.4 kernel, results are the same on both.

Let me know if any more diagnostic information is needed.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-25-generic 3.2.0-25.40
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1829 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1829 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2600000 irq 50'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,17aa212c,00100004'
   Controls : 15
   Simple ctrls : 8
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xf2110000 irq 52'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 6
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6JHT65WW-1.185000'
   Mixer name : 'ThinkPad EC 6JHT65WW-1.185000'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Mon Jun 18 12:28:40 2012
HibernationDevice: RESUME=UUID=57ff9492-0015-4c76-80ce-7402af67c7f5
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: LENOVO 284723U
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-25-generic root=UUID=9e9950bc-fd56-47f2-b990-f2527a6f2fae ro quiet splash initcall_debug vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-25-generic N/A
 linux-backports-modules-3.2.0-25-generic N/A
 linux-firmware 1.79
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/12/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6JET84WW (1.42 )
dmi.board.name: 284723U
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:bvr6JET84WW(1.42):bd11/12/2010:svnLENOVO:pn284723U:pvrThinkPadSL510:rvnLENOVO:rn284723U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 284723U
dmi.product.version: ThinkPad SL510
dmi.sys.vendor: LENOVO

[Joseph Salisbury (jsalisbury)]

Can you test the latest mainline kernel[0] to see if this bug is already fixed upstream?

Thanks in advance!

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-rc3-quantal/

[Daniel Manrique (roadmr)]

Hi Joseph,

I tested the mainline 3.5-rc3 kernel and it still exhibits the same problem.

Kernel version string is this:

Linux version 3.5.0-030500rc3-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201206162135 SMP Sun Jun 17 01:36:04 UTC 2012

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

[1] https://wiki.ubuntu.com/Bugs/Upstream/kernel

[Joseph Salisbury (jsalisbury)]

Also, do you happen to know if this bug exists on that system with prior Ubuntu releases? It would be good to know if this is a regression or not.

[Brendan Donegan (brendan-donegan)]

@Joseph,

We're not entirely sure this was tested properly with older releases, so we'd have to retest to make sure. @Daniel, can you see if it was actually failing on Oneiric? I think we know it was failing on Natty at least.

[Daniel Manrique (roadmr)]

Hi folks,

I tested this with Oneiric (3.0.0-12.20), and indeed, the keys still do not work.

[Daniel Manrique (roadmr)]

OK, so I noticed this strange behavior where the mute button *does* work but *only* when I press a volume button immediately after pressing mute. So mute is working like a "modifier" key.

This makes this bug a duplicate of 994274, I'll set it as such and continue updating on the other bug.