Re: No sound with Sony VAIO VPCZ1 (ALC889)

[Adam Williamson <awilliam@redhat.com>]

On Wed, 2013-07-17 at 09:49 +0200, Takashi Iwai wrote:

> > echo "multi_io = no" 
> >  >/sys/devices/pci0000:00/0000:00:1b.0/sound/card0/hwC0D0/hints
> > echo "1" 
> >  >/sys/devices/pci0000:00/0000:00:1b.0/sound/card0/hwC0D0/reconfigure
> > 
> > http://www.alsa-project.org/db/?f=8494525c7988dc528a45cc1e45134666f3793d7a
> > 
> >    < Master >
> >    Headphone
> >    Speaker
> >    Mic
> >    Mic Boost
> >    Mic 1
> >    Mic Boost 1
> >    Beep
> >    Auto-Mute Mode    Enabled
> > 
> > AT THIS POINT IT WORKED !
> > 
> > But not automatically though ?!
> > I have to manually put in the hint.
> 
> Hm, so something clears the flag again (or prevents the flag
> working).  Could you try to figure out when and where no_multi_io flag
> is set and cleared, e.g. by adding printk()s in the code path?

So it looks like things stalled a bit here; if you still need info from
someone with an affected system I can try and do it, but you might need
to walk me through it / provide patches a bit more than the above, as
I'm just a dumb qa monkey :) If you can make it a bit more 'tab a, slot
b' I'll try and do the testing. Thanks!
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora
http://www.happyassassin.net