[Lenovo SL410] Mute button requires you to hit a volume button

Bug #994274 reported by Jeff Lane on 2012-05-03
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

This is a bit weird.... 12.04 on the SL410 from Lenovo (201011-6829). If I hit the volume buttons, volume is run up and down as it's supposed to be. However when I hit the mute button, I must then hit either Vol Up or Vol Down before the sound is actually muted.

To see this in action, load up a song (I used the one in the Ubuntu Showcase in /usr/share/example-content) and start playing it.

Turn the volume up and down using the volume keys. Then hit the mute key and note that nothing happens. Next, hit a volume key and note that now the sound mutes...

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-23-generic 3.2.0-23.36
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
 /dev/snd/controlC0: ubuntu 1503 F.... pulseaudio
 Card hw:0 'Intel'/'HDA Intel at 0xf2a00000 irq 48'
   Mixer name : 'Intel Cantiga HDMI'
   Components : 'HDA:10ec0269,17aa212a,00100004 HDA:80862802,80860101,00100000'
   Controls : 21
   Simple ctrls : 9
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6JHT68WW-1.280000'
   Mixer name : 'ThinkPad EC 6JHT68WW-1.280000'
   Components : ''
   Controls : 1
   Simple ctrls : 1
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Thu May 3 18:06:20 2012
HibernationDevice: RESUME=UUID=dfc0ff03-060d-48dd-b67b-f0979125014d
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: LENOVO 284222U
 PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=a0ce8f55-7e66-480e-b2b9-3c69137ffa66 ro quiet splash initcall_debug
 linux-restricted-modules-3.2.0-23-generic N/A
 linux-backports-modules-3.2.0-23-generic N/A
 linux-firmware 1.79
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 6JET88WW (1.46 )
dmi.board.name: 284222U
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:bvr6JET88WW(1.46):bd04/01/2011:svnLENOVO:pn284222U:pvrThinkPadSL410:rvnLENOVO:rn284222U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 284222U
dmi.product.version: ThinkPad SL410
dmi.sys.vendor: LENOVO

Jeff Lane (bladernr) wrote :
Jeff Lane (bladernr) wrote :

Here's a short video showing the weirdness with the mute button

Changed in linux (Ubuntu):
importance: Undecided → Medium
Brad Figg (brad-figg) on 2012-05-03
Changed in linux (Ubuntu):
status: New → Confirmed
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernels, as well as the latest Quantal kernel?

The latest upstream kernel can be downloaded from:

The latest Quantal kernel can be downloaded from(Arch specific links are under "Builds"):

tags: added: kernel-da-key
Jeff Lane (bladernr) wrote :

Greg, can you or Jeff take a look at this?

Changed in linux (Ubuntu):
assignee: nobody → Greg Vallande (gvallande)
Ara Pulido (ara) on 2012-06-05
tags: added: blocks-hwcert regression-release
Ara Pulido (ara) on 2012-06-12
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Launchpad Janitor (janitor) wrote :

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

Changed in linux (Ubuntu Precise):
status: New → Confirmed
Daniel Manrique (roadmr) wrote :

I'm migrating here from bug 1014744, I'll recap that one briefly.

The affected system is very similar (Lenovo SL510), so potentially the same innards, just a bigger frame to accomodate the 15-inch screen.

The behavior I see was originally reported as a failing Mute button, but upon closer inspection it's exactly as described by Jeff; mute works if a volume button is pressed after pressing mute (mute works like a "modifier" key).

The microphone mute button remains completely unresponsive, however.

I've confirmed this behavior on Oneiric (kernel 3.0.0-12.20), Precise (kernel 3.2) and latest mainline kernel (3.5-rc3 at the moment).

Since I tested mainline kernel I'll set this back to Confirmed.

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Changed in linux (Ubuntu Precise):
importance: Undecided → Medium
Ara Pulido (ara) on 2012-06-26
Changed in linux (Ubuntu):
assignee: Greg Vallande (gvallande) → nobody
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