AC97 sound commonly gets corrupted

[Adam Petaccia]

Binary package hint: linux-source-2.6.22

Since upgrading to Gutsy, my sound will occasionally go out -- kind of. Instead of playing normally, it will output static. Sometimes, in Rhythmbox the static and song play at the same time. Other times its just complete static. This commonly happens while Wine is running, but I think Wine is just much more likely to trigger the bug, as it happens without Wine running as well. dmesg doesn't display anything too useful, but it will be posted.

[Adam Petaccia (mighmos)]

I forgot to say that rebooting is the only way to solve the problem.

[Daniel T Chen (crimsun)]

Is the symptom reproducible with linux-backports-modules-$(uname -r) installed?

[Adam Petaccia (mighmos)]

I now have no sound. Gnome doesn't even find a card.

[Adam Petaccia (mighmos)]

It came back after a second reboot (odd). I just experienced this problem again.

[garyh (ghoran)]

I just recently installed UBUNTU 7.10 and have taken all the online updates.
Unfortunately, I have acrackling sound.
I have http://www.ugoplayer.com/games/bikemania.html up in firefox and it sounds perfect except for crackling.

Here are my specs:
        *-multimedia
             description: Multimedia audio controller
             product: VT8233/A/8235/8237 AC97 Audio Controller
             vendor: VIA Technologies, Inc.
             physical id: 11.5
             bus info: pci@0000:00:11.5
             version: 50
             width: 32 bits
             clock: 33MHz
             capabilities: pm cap_list
             configuration: driver=VIA 82xx Audio latency=0 module=snd_via82xx

[Adam Petaccia (mighmos)]

Unmarking incomplete, I've provided the requested data (ubuntu-backports doesn't help).

[Leonator (schueren)]

Confirm. Exact same Symptoms with AC97 and this kernel

[Adam Petaccia (mighmos)]

I may be off, but it may be some kind of conversion bug. When I'm running Wine with my Default Sample Rate at 44100, it happens a lot more than at 48000.

[Leann Ogasawara (leannogasawara)]

Hi Adam,

The Hardy Heron Alpha series is currently under development and contains an updated version of the kernel. It would be helpful if you could test the latest Hardy Alpha release: http://www.ubuntu.com/testing . You should be able to then test the new kernel via the LiveCD. However please be sure that all sound levels are unmuted and turned up as Hardy contains ALSA version 1.0.16 which multes levels by default. If you can, please verify if this bug still exists or not and report back your results. Thanks.

[Adam Petaccia (mighmos)]

Already downloaded it, still have the same problems. And to be sure, I've tested different speakers, and its not the speakers that are acting up.

[Leann Ogasawara (leannogasawara)]

On the latest Hardy release, care to attach the output of running alsa-info.sh as described here: https://wiki.ubuntu.com/DebuggingSoundProblems . Thanks.

[Adam Petaccia (mighmos)]

I briefly thought it may have been a HW issue, but when I daemonize pulseaudio, muting and unmuting the sound brings it back (for a short while).

Attached is the file you've requested.

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Launchpad Janitor (janitor)]

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

[Amit Kucheria (amitk)]

This bug was reported a while ago but there hasn't been any recent comments or updates. Is this still an issue with the latest pre-release of Jaunty 9.04? Refer to http://www.ubuntu.com/testing/jaunty/beta . Please let us know.

[Bartek Celary (karaphka)]

my sound started to behave like this when I upgraded to Jaunty. I have a sound blaster live. There is nothing in messages about the problem. At first I thought it might be connected to the ati card I've just installed, but I've just seen the same problem on another PC which has Intel chip and some on board (hda intel I guess) sound card.

I am attaching the output of my lspci -vv and will also post lsmod.

[Leann Ogasawara (leannogasawara)]

@Bartek, please open a new bug. The bug you're seeing you mentioned started after upgrading to Jaunty whereas this bug was originally reported against Gutsy. Even though you may be experiencing the same symptoms it's likely a different bug. It's helpful to the kernel team if bugs target one specific issue against a specific set of hardware. We can easily mark bugs as duplicates later on if necessary. Thanks.

[Bartek Celary (karaphka)]

It looks something fixed it recently as I do not experience this any
more (it has been actually more than 2 months or so).
Sorry for not getting back with this information...

Best Regards,
Bartek

2009/7/30 Leann Ogasawara <email address hidden>:
> @Bartek, please open a new bug.  The bug you're seeing you mentioned
> started after upgrading to Jaunty whereas this bug was originally
> reported against Gutsy.  Even though you may be experiencing the same
> symptoms it's likely a different bug.  It's helpful to the kernel team
> if bugs target one specific issue against a specific set of hardware.
> We can easily mark bugs as duplicates later on if necessary.  Thanks.
>
> ** Changed in: linux (Ubuntu)
>       Status: Incomplete => New
>
> ** Changed in: linux (Ubuntu)
>       Status: New => Incomplete
>
> --
> AC97 sound commonly gets corrupted
> https://bugs.launchpad.net/bugs/175137
> You received this bug notification because you are a direct subscriber
> of the bug.
>

[Manoj Iyer (manjo)]

Closed as this is reported as fixed by user