Re: [2.6 patch] schedule obsolete OSS drivers for removal

[James Courtier-Dutton <James@superbug.demon.co.uk>]

caszonyi@rdslink.ro wrote:

> On Thu, 5 Jan 2006, Lee Revell wrote:
>
> > On Fri, 2006-01-06 at 01:19 +0200, Hannu Savolainen wrote:
> >
> > > On Thu, 5 Jan 2006, Lee Revell wrote:
> > >
> > > > On Thu, 2006-01-05 at 13:44 +0100, Marcin Dalecki wrote:
> > > >
> > > > > Second - you still didn't explain why this allows you to conclude
> > > > > that sound mixing should in no way be done inside the kernel.
> > > >
> > > >
> > > > It works perfectly right now in userspace.  Therefore it should not be
> > > > in the kernel.
> > >
> > > So all the complaints about dmix problems in the ALSA mailing lists are
> > > just exceptions that prove the above statement to be true.
> >
> >
> > No, it just means ALSA like the kernel is a work in progress.  Anyway
> > almost all the known issues have been fixed.  It works perfectly for the
> > vast majority of users.
>
> Ok. It seems i'm a minority.
> I switched xmms to alsa
> If i play a stream in xmms using alsa output and try to play in the 
> same time a movie in mplayer the last message printed by mplayer is
> alsa-init: 1 soundcard found, using: default
> and then it hangs until i press stop button in xmms. When i press the 
> stop button in xmms the movie begins to play. If i press now the play 
> button in xmms it says:
> ** WARNING **: alsa_setup(): Failed to open pcm device (default): 
> Device or resource busy
>
> So it seems that dmix is not working by default in kernel 2.6.15
> Alsa userspace tools are version 1.0.8.
>
> config and dmesg attached

dmix happens in alsa-lib (libasound...)
So, which version of the kernel you have will not make any difference to 
dmix.
Update your alsa-lib userspace to a more up to date version, and dmix 
will then work out of the box.


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