[Pkg-alsa-devel] Bug#570618: Bug#570618: alsa-source: PC speaker not working correctly on HDA Intel card with an Intel G45 DEVCTG chip

[Sebastien Hinderer]

Hi Elimar, and thanks a lot for your prompt response !

> I am running snd-hda-itel on a tp t61p.

Here it's a Dell Latitude E5400.

> What the hell is an ugly beep?

Attached is an MP3 file containing the recording of a series of noises produced
by console bells obtained by pressing the backspace key at the
shell prompt.

> For me it is just a beep....

Here it's not even a beep, just a very strange and disturbing noise, as
you will hear.

> Well the beep can be controlled by the Beep mixer control.

But that does not work very well, see below.

> What tells
> # amixer | grep -A4 Beep

Simple mixer control 'PC Beep',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 3
  Mono: Playback 1 [33%] [-12.00dB] [on]

When the Beep control varies from 1 to 3, this does not seem to have a
sensible effect on the volume of the beep one can hear. Moreover, even
when the control is set to zero, one can hear the beep. It's less loud
but still there. To me this is not the main problem so I'm reporting
this just for the sake of completeness...

> > This is important for me because, as a blind user, I make heavy use of
> > console beeps of varous frequencies to report various events.
> 
> AFAIK the frequency of the beep doesn't vary.

What I'm saying is that what I can hear does for sure _not_ correspond
to what has been implemented or what should be heard.

> There is a kernelmodul which can be enabled by commenting
> blacklist snd-pcsp
> to
> # blacklist snd-pcsp
> in /etc/modprobe.d/alsa-base-blacklist.conf
> Please don*t ask how this works ;-) AFAIK it uses the internal PC
> speaker.

Are you talking about pcspkr here ?

If you are talking about this module it is enabled on my system, i.e.not
blacklisted.

Thanks again for your help,
Shérab.
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