ac100 team mailing list archive

[Robert Hensing <robert@xxxxxxxxxxxxxxxx>]

Hi,

I am running kernel 3.0.19 (from marvin24s-kernel git though, because of 
LCD panel upgrade, but should be mostly identical) on my AC100-10V.
On my system there seems to be a bug with pulseaudio (probably), causing 
sound from speakers not to work out of the box. When you select the 
speakers audio profile (for example with: sound indicator -> Sound 
settings), then pulseaudio will mute Master, Headphone and Speaker. I am 
not sure the bug consistently behaves this way, but it should not 
interfere much with your alsamixer tuning.

The following settings work for me:

   Master: OO
   Headphone: OO
   Speaker: OO
   Speaker Mix DAC2SPK: OO
   SpeakerOut Mux: Speaker Mix
   SpeakerOut N Mux: LN/-R
   A-D Amp Mux: AB Amp
   DACL2HP: OO
   DACR2HP: OO
   Int  Spk: OO
   Left Headphone Mux: HP Left Mix
   Right Headphone Mux: HP Right Mix

All other settings do not matter, so you should be able to 
disable/mute/zero/leave/ignore them.
At least you have more up-to-date info now. If you keep having trouble, 
someone else might be able to help you if you give your AC100 model name.
Also, if your netbook behaves like mine, sound through headphones should 
keep working "out of the box" after having stored the alsamixer 
settings, for example through a *clean* shutdown/reboot.

Cheers,
Robert


On 03/06/2012 07:19 PM, Jasper Taylor wrote:
> Hi,
> I just upgraded to 12.04 beta1. I was hoping that the sound was all 
> going to be working at last in this release, but nothing works out of 
> the box. I have played with alsamixer settings and cannot get anything 
> more than clicks from the speakers, and nothing at all from the 
> headphone socket. The commands on the ARM/TEGRA/AC100 home page are 
> out of date -- I get
>
> $ sudo amixer set 'Line',0 unmute
> amixer: Unable to find simple control 'Line',0
>
> The only advice I can find on any list anywhere is to play with 
> alsamixer. Also as far as I can tell, no-one has ever had the 
> headphone socket working with any kernel other than 2.6.38-1000-ac100. 
> Can this be right? Can anyone save me from having to go back to Oneiric?
>     --Jasper
>
>
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