No audio output using Precise due to pulseaudio?

[Kaj Ailomaa]

On 04/30/2012 07:31 AM, Ralf Mardorf wrote:
> On Sun, 2012-04-29 at 22:35 +0200, Kaj Ailomaa wrote:
>> On 04/29/2012 04:00 PM, Ralf Mardorf wrote:
>> I still wonder what to do, to get access to the
>>> 4GB RAM, instead of just 3.8GB, since arch is 64-bit.
>>
>> Which kernel are you using?
>
> spinymouse at precise:~$ uname -a
> Linux precise 3.2.0-23-lowlatency #31-Ubuntu SMP PREEMPT Wed Apr 11
> 02:24:03 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
>
> I noticed that for another 64bit Linux on my machine too, while a 32bit
> Linux with a PAE is ok. I searched the Internet and found out that
> several people on different Linux have the same problem.
>
> - Ralf
>
>

And you are not using a builtin graphic card which uses a part of your RAM?
Is this a problem with other kernels as well?
You could try installing one of these to double check 
http://kernel.ubuntu.com/~kernel-ppa/mainline/