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

[Takashi Iwai]

At Fri, 25 Mar 2011 23:40:42 +0000 (GMT),
Chris Wilson wrote:
> 
> Hi Takashi,
> 
> On Fri, 25 Mar 2011, Takashi Iwai wrote:
> 
> >> 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?
> 
> I tried this by adding the following line to 
> /etc/modprobe.d/alsa-base.conf:
> 
>    options snd-hda-intel power_save_controller=0
> 
> and after a reboot, I still get the same pops on suspend and resume. Is 
> there some way to check dynamically whether the settings of the driver 
> match what's configured here?

The actual value is shown in /sys/module/snd_hda_intel/parameters/*.


Takashi