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SubjectRe: Regression: audio not detected "cannot build controls"
At Tue, 14 Dec 2010 11:54:49 -0800,
Jesse Barnes wrote:
>
> Sound on my Sony Vaio used to work back in 2.6.36 but no longer works.
> At boot time I see a message like this:
>
> [ 7.159241] hda_codec: ALC889: BIOS auto-probing.
> [ 7.159246] hda_codec: ALC889: SKU not ready 0x411111f0
> [ 7.160629] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input6
> [ 7.164300] hda_codec: cannot build controls for #0 (error -16)

EBUSY isn't used so much in the driver code, so I wonder how it can
get. Could you rebuild with CONFIG_SND_DEBUG_VERBOSE=y and check more
messages?

Also load snd-hda-intel module with probe_only=1 option.
This will initialize the codec without parsing, so that you can still
get the codec info. Run alsa-info.sh (with --no-upload option) and
attach the output for further analysis.


thanks,

Takashi


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