← Back to team overview

kernel-packages team mailing list archive

[Bug 23984] Re: Big bang on poweroff if sound device is enabled.


Oleksij Rempel, 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? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

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

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder, but the one at the top) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

If the mainline kernel does not fix this bug, please add the following tags:

As well, please remove the tag:

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your

** Attachment removed: "Debugging info from alsa-info.sh"

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Tags added: needs-kernel-logs needs-upstream-testing

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Big bang on poweroff if sound device is enabled.

Status in “linux” package in Ubuntu:
Status in “linux” package in Arch Linux:

Bug description:
  If power off and sound device is enabled it's make loud sound impuls wich can be
  dangerous for hardware. 
  Kernel still can't disable sound devices before poweroff.
  Resolution: unload snd-* module before poweroff. amixer mute das't help.
  I made smole hack wich resole this problem on my laptop, it's may be wrong bat
  it's working:
  i aded "modprobe -r snd-maestro3" to halt script.

  Tested and working realy good.

To manage notifications about this bug go to: