pulseaudio killing sound on Karmic

[NoOp]

On 12/14/2009 01:01 PM, Colin Law wrote:
> Hi
> I have Ubuntu 9.10 installed on a Toshiba A100-197.  Sound was not
> working and when looked at the devices in the pulseaudio volume
> control all I saw was Dummy Output (or something similar).  When I
> played something the output could be seen in the amplitude bars but no
> sound was heard.
> 
> After a lot of googling and trying various things I discovered that if
> I remove pulseaudio and use the alsa mixer directly it works ok, which
> came as a surprise to me as up till then I had assumed that it was a
> lower level problem.  When I install pulseaudio again the sound stops.
>  I have fiddled with settings in pulseaudio to no avail.  Any
> suggestions as to how to analyse or fix the problem?
> 
> aplay -l shows
> card 0: Intel [HDA Intel], device 0: ALC861 Analog [ALC861 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0

Maybe related?
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/391114
[[karmic]snd_hda_intel: audio moves to polling mode and starts repeating
(Toshiba A100-259/ATI IXP SB4x0 HD/ALC861)]