[alsa-devel] Loud pops from Intel HDA onboard sound, may damage speakers (fwd)

[Takashi Iwai]

At Thu, 24 Mar 2011 22:41:47 +0000 (GMT),
Chris Wilson wrote:
> 
> Hi Takashi and all,
> 
> On Thu, 24 Mar 2011, Takashi Iwai wrote:
> 
> >>> Does this happen with 2.6.38 kernel, too?
> >>
> >> I have not tried yet, do you have reason to think it may have changed 
> >> since 2.6.32?
> >
> > Lots of changes since 2.6.32.  I won't be surprised if any of them hits.
> >
> >> Can I build just the sound driver without replacing the whole kernel?
> >
> > You can try alsa-driver tarball.
> 
> Unfortunately, I can confirm that stock 2.6.38 does NOT resolve the pops 
> on suspend and resume.

OK, then did you try to set option power_save_controller=0 for
snd-hda-intel?

ALC269 has some workarounds using COEF magic.  Maybe there is a
similar trick for ALC663.  Kailang, do you know of it?


thanks,

Takashi