pulseaudio killing sound on Karmic

Colin Law clanlaw at googlemail.com
Tue Dec 15 08:58:59 UTC 2009

2009/12/14 Mark C.  Miller <mr.mcmiller at gmail.com>:
> On Mon, 14 Dec 2009 21:01:51 +0000, 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
>> Colin
> I lost my audio when I upgraded to 9.10.  I installed pulse audio and
> then I played around with it for a long time until I found the following
> combination:
> system
> sound preferences
> output
> analog mono output/no amplifier

Thanks for the suggestion but unfortunately that is not an option for
me as I only have Dummy Output available.


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