[gentoo-user] Re: ALSA - Still No Sound

[walt <w41ter@gmail.com>]

On 02/15/2011 02:43 AM, dhk wrote:
> On 02/14/2011 12:29 PM, walt wrote:
>> On 02/14/2011 03:43 AM, dhk wrote:
>>
>>> What are the "Intel HD Audio" codecs?  I don't
>>> remember doing anything explicitly for them.  How do I check them?
>>> Thanks.
>>
>> Under the HD-Intel sound card driver menu there are several codecs for
>> specific sound chips.  e.g. I use the one for realtek, but yours may be
>> a different one.  Doesn't hurt to build them all as modules and see which
>> one(s) your kernel actually uses.
>>
>>
>>
>
> It looks like all the codec's are built in.  I'm not sure what the last
> one in the list does.
>
> # grep -i realtek /etc/kernels/kernel-config-x86_64-2.6.36-gentoo-r5
> CONFIG_REALTEK_PHY=m
> CONFIG_SND_HDA_CODEC_REALTEK=y
> # grep -i codec /etc/kernels/kernel-config-x86_64-2.6.36-gentoo-r5
> CONFIG_SND_AC97_CODEC=m
> CONFIG_SND_HDA_CODEC_REALTEK=y
> CONFIG_SND_HDA_CODEC_ANALOG=y
> CONFIG_SND_HDA_CODEC_SIGMATEL=y
> CONFIG_SND_HDA_CODEC_VIA=y
> CONFIG_SND_HDA_CODEC_ATIHDMI=y
> CONFIG_SND_HDA_CODEC_NVHDMI=y
> CONFIG_SND_HDA_CODEC_INTELHDMI=y
> CONFIG_SND_HDA_CODEC_CIRRUS=y
> CONFIG_SND_HDA_CODEC_CONEXANT=y
> CONFIG_SND_HDA_CODEC_CA0110=y
> CONFIG_SND_HDA_CODEC_CMEDIA=y
> CONFIG_SND_HDA_CODEC_SI3054=y
> # CONFIG_SND_SOC_ALL_CODECS is not set
>
> This is the genkernel so pretty much everything is built in.

There is a very recent post from someone (Walter?) that says he got audio
only after compiling all the kernel sound features as modules, but he has
no idea why (nor do I) but, as no one yet has a better idea, I'd try it as
an experiment.