Re: qemu/kvm seems to take ALSA all for itself?

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Jon wrote:
> On Mon, May 21, 2007 at 08:37:48AM -0700, Shahar Frank wrote:
>
>   
>> You have to make QEMU use ALSA as your sound system and specify a 
>> mixer device for input and output. This can be done using some 
>> environment variables that should be set before the qemu binary is 
>> run.
>>     
>
> >From the ALSA wiki:
>
> "For ALSA 1.0.9rc2 and higher you don't need to setup dmix. Dmix is 
> enabled as default for soundcards which don't support hw mixing."
>
> I've found this to be the case on my laptop, where I use:
>
> export QEMU_AUDIO_DRV=alsa
> export QEMU_AUDIO_DAC_FIXED_FREQ=48000
> export QEMU_AUDIO_ADC_FIXED_FREQ=48000
> export QEMU_ALSA_DAC_BUFFER_SIZE=16384
>
> Buffer size is very important, else it crackles and pops for me.
>
>   

This works for me (alsa 1.0.14rc3).  Thanks.

> Now if only sound could survive a loadvm/savevm it'd be perfect. :-)
>   

Is qemu-devel aware of this issue?

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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