Can't get sound working

James Haggerty james.haggerty at gmail.com
Tue Feb 23 03:36:49 EST 2010


And now I find the issue tracker:

http://projects.qi-hardware.com/index.php/p/ben-nanonote/issues/36/

My apologies - ignore!

On 23 February 2010 03:08, James Haggerty <james.haggerty at gmail.com> wrote:
> Hi all,
>
> I'm sure this should go on the planned users list... but in the meantime.
>
> I received my nanonote a few hours ago (hooray!) but can't get it to
> make any noise (testing via aplay, which thinks it's playing a wav
> file but I hear nothing). It seems unresponsive to any attempt to
> change settings through alsamixer, alsactl or amixer (though amixer
> thinks it's doing something useful). For instance:
>
> root at BenNanoNote:/usr/bin# amixer -d sset 'Output Mixer DAC' on
> Simple mixer control 'Output Mixer DAC',0
>  Capabilities: pswitch pswitch-joined
>  Playback channels: Mono
>  Mono: Playback [on]
> root at BenNanoNote:/usr/bin# amixer -d sget 'Output Mixer DAC'
> Simple mixer control 'Output Mixer DAC',0
>  Capabilities: pswitch pswitch-joined
>  Playback channels: Mono
>  Mono: Playback [off]
>
> (notice how on setting the playback is 'on', but if I read back the
> result it's off)
>
> When I look at the settings in alsamixer, the volume is stuck on 100,
> and output mixer bypass and DAC are both off.
>
> Boot messages:
> [   10.170000] Advanced Linux Sound Architecture Driver Version 1.0.21.
> [   10.180000] No device for DAI jz4740-i2s
> [   10.230000] asoc: jz-codec <-> jz4740-i2s mapping ok
> [   10.260000] ALSA device list:
> [   10.270000]   #0: QI LB60 (jz-codec)
>
> Am I missing something obvious?
>
> Thanks,
> James.
>
> PS Also, I have the following repeated error on boot:
> [   13.150000] power_supply battery: driver failed to report
> `voltage_now' property
> [   16.150000] power_supply battery: driver failed to report
> `voltage_now' property
> [   17.510000] power_supply battery: driver failed to report
> `voltage_now' property
>
> Should I be worried?
>
> PPS In other sad news, it's locked up twice, once after ifconfig
> segfaulted (???).
>




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