Re: Keep internal PC speaker output with snd_hda_intel

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clemens fischer wrote:
> On Sun-2009/08/16-16:51 Jan Ploski wrote:
> 
>> Thanks for your reply. I now upgraded from 2.6.28.3, which didn't even
>> have the CONFIG_SND_HDA_INPUT_BEEP option, to 2.6.30.4. The option is
>> unset. However, the beep redirection through the sound card still
>> happens when the module is loaded. Based on Takashi's comments above,
>> it seems that I'm out of luck with this hardware. The only way to
>> avoid becoming deaf is to mute the PC speaker entirely, unload the HDA
>> module and/or buy a sound card which doesn't have this issue.
> 
> Now this I didn't expect!  You could also look into the alsamixer
> settings.  I have a setting called "Beep" in there, which you could set
> muted.  Then do "alsactl store" in case your ALSA doesn't do this
> automatically.  This should silence any beeping through the sound card.
> 
> I wonder why you have this particular problem.  My machine only beeps
> through the piezo buzzer with sound going where it should.

I can mute it all right using alsamixer. The setting is also remembered 
between reboots.

It's not a satisfactory solution because I'm used to hearing the PC 
speaker beep on events like incoming email or jobs finishing execution. 
In fact, the "digital" beep is so loud (with the lowest volume setting) 
that if the headphones lie on a table beside me, I can hear it just as 
clearly as the PC speaker. I just have to remember to mute it before I 
put them on!

I find it hard to believe that Alsa has no control of where this 
specific beep goes when the module is loaded or over its exact volume 
(I've seen in the source code that the played frequency is generated by 
the driver so why not volume?)

Regards,
Jan Ploski

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