[LAU] mute laptop speakers with Intel HDA

Takashi Iwai tiwai at suse.de
Mon Aug 6 13:13:12 EDT 2007

At Fri, 03 Aug 2007 18:08:11 -1000,
david wrote:
> Takashi Iwai wrote:
> > At Wed, 01 Aug 2007 11:58:41 -1000,
> > gnome at hawaii.rr.com wrote:
> >> The reason you see the options for "caller ID" and "off hook" is that 
> >> the Intel HDA chipset also includes a modem. My laptop uses Intel HDA, 
> >> and I'm used to the modem part showing up as if it were an audio device.
> >>
> >> The audio works on my laptop except for an inability to record from the 
> >> mic input. Last I heard, ALSA was blaming the kernel, and kernel 
> >> developers were blaming ALSA. Although I haven't tried it since my most 
> >> recent kernel update.
> > 
> > An interesting rumor.  Where did you hear such a thing?
> IIRC, it's my slightly-dramatized rendering of what one of the ALSA 
> developers said when he responded to my bug report about not being able 
> to record from the mic input on my Intel chipset. He basically said that 
> the ALSA driver was not being notified *by the kernel* that the audio 
> input buffer was full and ready to be read. He advised me to try again 
> with a more recent kernel. Now the part about the kernel people blaming 
> it on ALSA developers may have come from this list.

Then, well, you made it really too dramatic.  Requesting the update to
the latest kernel is a very standard procedure.  Otherwise, the
developer cannot start real debugging at all.

The most important thing is to level the environment of both
development and testing.  Thus this has nothing to with blaming
whomever.  It's the stage even before blaming someone else.


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