[Lenovo IdeaPad Y430] Subwoofer don't mute/unmute on plugging external acoustics

Thanks for all that info. Could you please also run "apport-collect -p alsa-base 383263" so we can get a little more info about your system?

Thanks.

 affects ubuntu/alsa-driver
 status incomplete

Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: zan 30423 F.... mixer_applet2
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf4500000 irq 22'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:10de0003,10de0101,00100000 HDA:14f15051,17aa3c2f,00100000'
   Controls : 14
   Simple ctrls : 7
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.18.dfsg-1ubuntu8
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=ru_RU.UTF-8
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare sudo

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p alsa-base 383263

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

Now I haven't time for experiments, sorry. I will install 10.04 when it will be released and report.

<email address hidden> mailbox not exist anymore.
Can someone test this issue on Lucid?

Oh, sorry - my mistake. Correct mailbox of <email address hidden> user in his Launchpad profile.

No changes. I've lost any hope.

Already fixed in ALSA upstream: http://mailman.alsa-project.org/pipermail/alsa-devel/2010-June/028682.html
The patch, which has been already merged upstream, can be readily applied to the Ubuntu kernels. I've been using a similar patch since Karmic.

so... whats the fix for this?

If a working patch is upstream, the fix should be to install the latest snapshot drivers according to https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules .

Why not just backport the fix since this is already a confirmed upstream issue and an upstream patch is already available?

@Darwin, I'd like a confirmation that the upstream fix actually solves the problem. If you can confirm that it does, and afterwards upload an alsa-info ( http://wiki.ubuntu.com/Audio/AlsaInfo ) to confirm that you have the same hardware as the original reporter, that'll be good enough.

How do I apply this "upstream fix" please?

I can confirm that the upstream fix actually solves the problem. I've been using the patch since Lucid until now (Maverick).
Attached is my alsa-info.

For Lucid users, attached is the patch rebased to Linux 2.6.32.
For Maverick users, the patch specified in my post #17 can be readily applied to the 2.6.35 kernel.

@Jimz, the easiest way would be to obtain the source code for your kernel, recompile just the snd-hda-codec-conexant.ko module with the upstream patch, and then install it in /lib/modules/$(uname -r)/updates. And oh, don't forget to call depmod afterwards.

err... could you please point me somewhere on how to do this? I am bit of a noob...

Thanks very much Darwin! :)

For those who can't wait for an official kernel update containing the fix, download this file, extract, run install.sh as root, then reboot. This should work for both Lucid and Maverick users. Make sure that linux-headers-* (for your kernel version) and build-essential are installed.

@Darwin, thanks for your investigation and for making fixes available to users! You might want to look into DKMS, that's what I use when I provide test packages for HDA fixes. As for the 2.6.35 patch, I've sent an email to stable and to the <email address hidden> mailinglist. Let's hope they pick it up.

4 Jimz Au and other who don't want to deal with compilers, my solution was: to bought E-MU 0202.

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]