Bug#620652: linux-image-2.6.38-2-686-bigmem: fails to disable error beep

[Jonathan Nieder <jrnieder@gmail.com>]

henry atting wrote:
> Jonathan Nieder <jrnieder@gmail.com> writes:

>> 	# modprobe -r snd_hda_intel
>> 	# modprobe snd_hda_intel beep_mode=0
>>
>> If that works, maybe 2 ("mutable using the software mixer") would be a
>> good default for SND_HDA_INPUT_BEEP_MODE.
>
> This works indeed. Becaus I could not unload it (got a message that it
> is still in use) I put these two lines in /etc/rc.local... and the beep
> is gone. 

Thanks.  One final test: if you use beep_mode=2 (instead of beep_mode=0)
and use your usual mixing app, can you cause the beep to go away (i.e.,
is there a control for that)?

Depending on the answer, I think we should:

 * use beep_mode=2 and find some way to advertise (release notes?)
   that the mixer can be used to turn the beep on and off, or

 * keep using beep_mode=1 and find some way to advertise that adding
   a .conf file to /etc/modprobe.d with

	options snd_hda_intel beep_mode=0

   will turn the beep off.  And if there is some sysfs way to change
   the setting at runtime, that would be worth advertising, too.

Meanwhile I also think it would be a good idea to turn pc speaker
beeps in general off by default, but that's a separate story (and
probably should be filed as a separate bug).