Kernel 3.2.0-25 Breaks Sound

[Githlar]

I noticed several days ago that my sound suddenly quick working out of my speakers. My headphone jacks work just fine. In a backwards troubleshooting binge I tore apart my laptop (an HP Pavilion dv7-2273cl) to ensure the speaker connection was still secure. I attempted to install the previous versions of both ALSA and PulseAudio, both of which failed. I used the ubunu-audio-dev/alsa-daily PPA. Finally I got frustrated enough to boot into Windows and the sound worked just fine. Finally, after getting annoyed enough to try troubleshooting again, I found the problem to be the 3.2.0-25 kernel. When booting from 3.2.0-24 (and rebuilding my proprietary ATI graphics driver) my sound works just fine.

I've been running Linux almost exclusively since 2007 and I've never had a problem like this before with any kernel unless it was a self-made or unstable/testing version - a problem where something just quits working after an update just has never happened.

Machine: HP Pavilion dv7-2273cl (Laptop)
Ubuntu version: 12.04 Precise Pangolin (with Gnome Shell)

`lspci` output is attached.

[Githlar (githlar-deactivatedaccount)]

Don't know why it set it as a linux-meta problem...

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1017334

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

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

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.5kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). 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.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

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

[Githlar (githlar-deactivatedaccount)]

Apport crashes when attempting to submit a bug report, gives terminal output:

No packages found matching linux.
ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 718, in add_hooks_info
    symb['add_info'](self, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 45, in add_info
    match_error_messages(report)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 129, in match_error_messages
    if report['ProblemType'] == 'Package':
  File "/usr/lib/python2.7/UserDict.py", line 23, in __getitem__
    raise KeyError(key)
KeyError: 'ProblemType'
Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 499, in <lambda>
    GLib.idle_add(lambda: self.collect_info(on_finished=self.ui_update_view))
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 867, in collect_info
    icthread.exc_raise()
  File "/usr/lib/python2.7/dist-packages/apport/REThread.py", line 34, in run
    self._retval = self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 111, in thread_collect_info
    if report['ProblemType'] == 'Crash' and \
  File "/usr/lib/python2.7/UserDict.py", line 23, in __getitem__
    raise KeyError(key)
KeyError: 'ProblemType'

[Githlar (githlar-deactivatedaccount)]

OK, forgive my ignorance but I'm having some issues using the mainline kernel. I installed both linux-image-3.5.0-999.201206250405_amd64.deb and the corresponding linux-header package (not sure if that was necessary). However, it's totally unusable. No drivers are loaded what-so-ever (USB mouse, wireless, sound all don't work at least). I must be missing something. Am I going to have to build all these drivers from source just to test this, or is there an easier way?

If I have to build everything from source, I'm not even sure I'd get everything honestly - even though I'm pretty familiar with all the back-end stuff.

[Githlar (githlar-deactivatedaccount)]

Ok, I found out where I went wrong. I clicked the first link in your post rather than the second and installed the daily kernel. I'm running off the RC3 kernel right now (installed linux-headers, linux-image, and linux-image-extras). Seems now that everything is working -- except the sound. Same exact issue: headphones work, speakers do not.

[Luis Henriques (henrix)]

This could be a duplicate of bug #1013183 (similar laptop, similar issue). Could you please try the kernel in comment #61 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1013183/comments/61)?

[Githlar (githlar-deactivatedaccount)]

I can confirm that your patch works. Not sure if I have that STAC92XX chip or not. But, not only does the "bongo" play, I'm also getting full sound in GNOME as well. I'll go ahead and close this bug as a duplicate of bug #1013183. I can't wait to see the patch come down... don't like running behind-the-curve kernels ;)