[alsa-devel] ALSA hda_intel.c:834 spurious response ... ?

[Takashi Iwai]

At Wed, 17 Oct 2012 12:21:26 +0200,
Oleksij Rempel wrote:
> 
> Am 17.10.2012 08:35, schrieb Takashi Iwai:
> > At Wed, 17 Oct 2012 08:23:27 +0200,
> > Oleksij Rempel wrote:
> >>
> >> Hallo all,
> >>
> >> i get with latest linus master fallowing messages after resume from
> >> suspend to ram:
> >> [ 9188.636589] ALSA hda_intel.c:834 spurious response 0x0:0x0, last
> >> cmd=0x170500
> >> [ 9188.636592] ALSA hda_intel.c:834 spurious response 0x0:0x0, last
> >> cmd=0x170500
> >> [ 9188.636595] ALSA hda_intel.c:834 spurious response 0x0:0x3, last
> >> cmd=0x301f0500
> >> [ 9188.636598] ALSA hda_intel.c:834 spurious response 0x0:0x3, last
> >> cmd=0x301f0500
> >> [ 9188.636601] ALSA hda_intel.c:834 spurious response 0x0:0x3, last
> >> cmd=0x301f0500
> >> [ 9188.636604] ALSA hda_intel.c:834 spurious response 0x9000094:0x3,
> >> last cmd=0x301f0500
> >> [ 9188.636606] ALSA hda_intel.c:834 spurious response 0x0:0x3, last
> >> cmd=0x301f0500
> >>
> >>
> >> is it some thing you need to know? For more info see attached dmesg.
> >
> > As long as you don't hear obvious audible regression (e.g. any missing
> > output), these should be harmless.  All these are SET_POWER_STATE and
> > GET_POWER_STATE verbs, so any problem must appear obviously.
> >
> > But certainly it makes feel a bit uneasy.  You didn't get this with
> > 3.6 kernel, right?
> 
> yes, it is new with 3.7.0-rc1.
> now i had chance to test sound - it is broken. For example mplayer 
> starts to play with supersonic speed, but without sound.
> Currently i can't reproduce it. Before i got this error it was several 
> time suspended, used headphones, charged... and so on.

Hard to tell without more actual machine information, but the related
change would be the runtime PM support in the HD-audio controller.
Try to pass power_save_controller=0.


Takashi