On Fri, Apr 16, 2010 at 03:58:33PM -0700, Jim Lucas wrote:
> Setup:
> Install 1, I have a base install of 4.6 FINAL
> Install 2, Upgrade of Install 1 system to 4.7 CURRENT
> 
> Issue:
> When the system boots the speaker output is generating a constant tone or
> buzzing sound from the moment that is loads the azalia driver.
> 
> Things I tried:
> 
> I can mute the tone by issuing the "mixerctl outputs.master.mute=on" command.
> 
> I have tried different powered and non-powered speakers, plus head phones with
> no change in condition.
> 
> Can anybody shed some light on the issue?  If you need further system
> information, please ask.
> 
> I have included a copy of the dmesg, mixerctl, and audioctl output from the 
> 4.7
> system below.
> 
> TIA for any assistance you might provide.

> # mixerctl

always send 'mixerctl -v' output please.  this is in the FAQ, btw.

> record.adc-0:1_mute=off
> record.adc-0:1=120,120
> inputs.mix_source=dac-0:1,mic,line-in,mic2,dac-6:7
> inputs.mix_dac-0:1=120,120
> inputs.mix_mic=120,120
> inputs.mix_line-in=120,120
> inputs.mix_mic2=120,120
> inputs.mix_dac-6:7=120,120
> record.adc-0:1_source=mix
> inputs.dac-4:5_mute=off
> inputs.dac-4:5=126,126
> inputs.dac-2:3_mute=off
> inputs.dac-2:3=126,126
> inputs.dac-6:7_mute=off
> inputs.dac-6:7=126,126
> outputs.mic_source=dac-2:3
> outputs.mic_dir=input-vr50
> outputs.line-in_source=dac-4:5
> outputs.line-in_dir=input
> outputs.line_source=mix
> outputs.line_mute=off
> outputs.line=126,126
> outputs.line_boost=off

so this is your only (currently configured as) output jack, so I
guess this is where the noise is coming from.

outputs.line_source=mix

so, what's mix got?

inputs.mix_source=dac-0:1,mic,line-in,mic2,dac-6:7

try experimenting with that, to see if it's one of those creating
the noise.  I'd probably take the mics out first.


> outputs.mic2_source=dac-6:7
> outputs.mic2_dir=input-vr50
> outputs.SPDIF_source=dig-dac-0:1
> record.adc-2:3_source=mic2
> record.adc-2:3_mute=off
> record.adc-2:3=120,120
> outputs.mic_sense=unplugged
> outputs.line-in_sense=unplugged
> outputs.line_sense=unplugged
> outputs.mic2_sense=unplugged
> outputs.master=126,126
> outputs.master.mute=off
> outputs.master.slaves=line
> record.volume=120,120
> record.volume.mute=off
> record.volume.slaves=adc-0:1,adc-2:3
> outputs.mode=analog
> 

-- 
jake...@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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