Re: Linux 2.6.16-rc3

[Takashi Iwai <tiwai@suse.de>]

At Mon, 13 Feb 2006 15:34:28 +0100,
Patrizio Bassi wrote:
> 
> Takashi Iwai ha scritto:
> > At Mon, 13 Feb 2006 14:31:23 +0100,
> > Patrizio Bassi wrote:
> >   
> >> Takashi Iwai ha scritto:
> >>     
> >>> At Mon, 13 Feb 2006 13:37:55 +0100,
> >>> Patrizio Bassi wrote:
> >>>   
> >>>       
> >>>> Takashi Iwai ha scritto:
> >>>>     
> >>>>         
> >>>>> At Sun, 12 Feb 2006 19:05:20 -0800,
> >>>>> Andrew Morton wrote:
> >>>>>   
> >>>>>       
> >>>>>           
> >>>>>> - Patrizio Bassi <patrizio.bassi@gmail.com> has an alsa suspend
> >>>>>>   regression ("alsa suspend/resume continues to fail for ens1370")
> >>>>>>     
> >>>>>>         
> >>>>>>             
> >>>>> It's not a "regression".  PM didn't work with ens1370 at all in the
> >>>>> eralier version.
> >>>>>
> >>>>> About the problem there, I have no idea now what's wrong.  The
> >>>>> suspend-to-disk works fine if the driver is built as module but not as
> >>>>> built-in kernel.
> >>>>>
> >>>>>
> >>>>>   
> >>>>>       
> >>>>>           
> >>>> i wrote "regression" because before (ehm...exactly don't know...about
> >>>> 2.6.14 time)
> >>>> after suspend i had to restart my distro's mixer values service or i
> >>>> couldn't hear anything.
> >>>> and...ok..it was boring but worked.
> >>>>     
> >>>>         
> >>> You abused the function which wasn't officially supported :)
> >>>
> >>>
> >>> Takashi
> >>>
> >>>   
> >>>       
> >> nice i'm an abuser! :)
> >>
> >> ok, seriously..that's bad, because before it was not implemented, so ok...
> >> but now it fails with errors (and make apps not working properly) which
> >> is worse.
> >>     
> >
> > My rough guess is the initialization order, the resume was called too
> > early.
> >
> > What about to put sleep between snd_ensoniq_chip_init() and
> > snd_ak4531_resume()?  Or put more delay in snd_ak4531_resume()?
> >
> >
> > Takashi
> >
> >   
> i'm almost sure the problem is not there (or, at least not only)
> infact i get 0x660 errors (or better a long flood...) while suspending too.

IIRC, suspend calls resume callback once to revive the devices back.
So, basically you see the same problem here.


Takashi