This is on a jetway MB with an onboard nvidia chipset so not quite the
same as yours (only sound and the nvidia module are modularised) - in
particular make sure that you are building the "Intel HD Audio" codecs -
it isnt immediately obvious that its required.
On Sun, 2011-02-13 at 18:19 -0500, dhk wrote:
> I still can't get sound to work. Can someone tell me what's wrong? In
> addition to my earlier thread below I have INPUT_DEVICES="evdev" and
> ALSA_CARDS="AC97" in my make.conf.
>
> The following that someone suggented does nothing.
> > modprobe snd-intel8x0; modprobe snd-pcm-oss; modprobe snd-mixer-oss;
> modprobe snd-seq-oss
>
> I've also tried a second sound card and alternate set of speakers. Also
> nothing is muted or turned down.
>
> According to http://kmuto.jp/debian/hcl/ my card works.
> 10de00ea Yes nVidia Corporation nForce3 250Gb AC'97 Audio Controller
> snd-intel8x0 v2.6.25-
>
>
> On 01/22/2011 08:16 PM, dhk wrote:
> > Can someone tell me why I don't have sound? I've followed the
> > instructions at http://www.gentoo.org/doc/en/alsa-guide.xml and
> > everything seems to be working, but there's still no sound. I've also
> > swapped out the speakers, made sure they were powered on, and the volume
> > turned up. Also I'm in the audio group and the channels are unmuted
> > with the volume at 75%.
> >
> > One thing I did notice is that after running alsaconf there aren't any
> > modules in /etc/modules.d/, in fact the directory doesn't even exist.
> > Now if there aren't any modules to load that's fine, but since I don't
> > hear anything I'm not so sure.
> >
> > Below is what's on my ~amd64 system.
> >
> > Thanks.
> >
> > # rc-update show | grep -i alsa
> > alsasound | boot
> >
> > # /etc/init.d/alsasound restart
> > * WARNING: you are stopping a boot service.
> > * Storing ALSA Mixer Levels ...
> > [ ok ]
> > * Loading ALSA modules ...
> > * Loading: snd-card-0 ...
> > [ ok ]
> > * Restoring Mixer Levels ...
> > [ ok ]
> >
> > # lspci -v | grep -i audio
> > 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
> > AC'97 Audio Controller (rev a1)
> >
> > # cat /etc/kernels/kernel-config-x86_64-2.6.36-gentoo-r5 | egrep -i
> > 'sound|ac97|alsa'
> > CONFIG_SOUND=m
> > CONFIG_SOUND_OSS_CORE=y
> > CONFIG_SOUND_OSS_CORE_PRECLAIM=y
> > CONFIG_SND_AC97_CODEC=m
> > # CONFIG_SND_AC97_POWER_SAVE is not set
> > # CONFIG_SOUND_PRIME is not set
> > CONFIG_AC97_BUS=m
> > CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
> > # CONFIG_CRYPTO_SALSA20 is not set
> > CONFIG_CRYPTO_SALSA20_X86_64=m
> >
> > # cat /proc/asound/cards
> > 0 [CK8S ]: NFORCE - NVidia CK8S
> > NVidia CK8S with ALC850 at irq 20
> > 1 [UART ]: MPU-401 UART - MPU-401 UART
> > MPU-401 UART at 0x300, irq 5
> >
> > # cat /proc/asound/version
> > Advanced Linux Sound Architecture Driver Version 1.0.23.
> >
> > # cat /proc/asound/oss/sndstat
> > Sound Driver:3.8.1a-980706 (ALSA v1.0.23 emulation code)
> > Kernel: Linux jenny 2.6.36-gentoo-r5 #1 SMP Wed Jan 12 16:53:04 EST 2011
> > x86_64
> > Config options: 0
> >
> > Installed drivers:
> > Type 10: ALSA emulation
> >
> > Card config:
> > NVidia CK8S with ALC850 at irq 20
> > MPU-401 UART at 0x300, irq 5
> >
> > Audio devices:
> > 0: NVidia CK8S (DUPLEX)
> >
> > Synth devices: NOT ENABLED IN CONFIG
> >
> > Midi devices:
> > 1: MPU-401 UART MIDI
> >
> > Timers:
> > 31: system timer
> >
> > Mixers:
> > 0: Realtek ALC850 rev 0
> > 1: mixer10
>
> Thanks again,
>
> dhk
>
02-14-2011, 01:21 AM
Nikos Chantziaras
ALSA - Still No Sound
On 02/14/2011 01:19 AM, dhk wrote:
I still can't get sound to work. Can someone tell me what's wrong? In
addition to my earlier thread below I have INPUT_DEVICES="evdev" and
ALSA_CARDS="AC97" in my make.conf.
Dumb question, but did you unmute the channels in 'alsamixer'? I almost
always had to do that the first time I configured ALSA. For reason the
defaults seemed to mute the channels.
02-14-2011, 10:43 AM
dhk
ALSA - Still No Sound
On 02/13/2011 09:01 PM, Bill Kenworthy wrote:
> what does "lsmod" say?
>
> This is on a jetway MB with an onboard nvidia chipset so not quite the
> same as yours (only sound and the nvidia module are modularised) - in
> particular make sure that you are building the "Intel HD Audio" codecs -
> it isnt immediately obvious that its required.
>
> BillK
>
>
> myth3 linux # lsmod
> Module Size Used by
> snd_pcm_oss 37091 0
> snd_mixer_oss 14409 1 snd_pcm_oss
> snd_seq_dummy 1335 0
> snd_seq_oss 26582 0
> snd_seq_midi_event 5148 1 snd_seq_oss
> snd_seq 47261 5
> snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> snd_usb_audio 76036 0
> snd_usb_lib 16911 1 snd_usb_audio
> snd_rawmidi 17403 1 snd_usb_lib
> snd_seq_device 4917 4
> snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
> snd_hda_codec_nvhdmi 12443 1
> snd_hda_codec_realtek 261601 1
> easycap 1258666 0
> nvidia 10078248 36
> snd_hda_intel 20392 4
> snd_hda_codec 67766 3
> snd_hda_codec_nvhdmi,snd_hda_codec_realtek,snd_hda _intel
> lirc_wb677 22727 1
> snd_hwdep 5724 2 snd_usb_audio,snd_hda_codec
> lirc_dev 10091 3 lirc_wb677
> snd_pcm 68302 5
> snd_pcm_oss,snd_usb_audio,easycap,snd_hda_intel,sn d_hda_codec
> snd_timer 17708 2 snd_seq,snd_pcm
> snd 49975 23
> snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq,snd_ usb_audio,snd_usb_lib,snd_rawmidi,snd_seq_device,s nd_hda_codec_realtek,easycap,snd_hda_intel,snd_hda _codec,snd_hwdep,snd_pcm,snd_timer
> soundcore 5135 1 snd
> snd_page_alloc 6641 2 snd_hda_intel,snd_pcm
> myth3 linux #
>
> On Sun, 2011-02-13 at 18:19 -0500, dhk wrote:
>> I still can't get sound to work. Can someone tell me what's wrong? In
>> addition to my earlier thread below I have INPUT_DEVICES="evdev" and
>> ALSA_CARDS="AC97" in my make.conf.
>>
>> The following that someone suggented does nothing.
>>> modprobe snd-intel8x0; modprobe snd-pcm-oss; modprobe snd-mixer-oss;
>> modprobe snd-seq-oss
>>
>> I've also tried a second sound card and alternate set of speakers. Also
>> nothing is muted or turned down.
>>
>> According to http://kmuto.jp/debian/hcl/ my card works.
>> 10de00ea Yes nVidia Corporation nForce3 250Gb AC'97 Audio Controller
>> snd-intel8x0 v2.6.25-
>>
>>
>> On 01/22/2011 08:16 PM, dhk wrote:
>>> Can someone tell me why I don't have sound? I've followed the
>>> instructions at http://www.gentoo.org/doc/en/alsa-guide.xml and
>>> everything seems to be working, but there's still no sound. I've also
>>> swapped out the speakers, made sure they were powered on, and the volume
>>> turned up. Also I'm in the audio group and the channels are unmuted
>>> with the volume at 75%.
>>>
>>> One thing I did notice is that after running alsaconf there aren't any
>>> modules in /etc/modules.d/, in fact the directory doesn't even exist.
>>> Now if there aren't any modules to load that's fine, but since I don't
>>> hear anything I'm not so sure.
>>>
>>> Below is what's on my ~amd64 system.
>>>
>>> Thanks.
>>>
>>> # rc-update show | grep -i alsa
>>> alsasound | boot
>>>
>>> # /etc/init.d/alsasound restart
>>> * WARNING: you are stopping a boot service.
>>> * Storing ALSA Mixer Levels ...
>>> [ ok ]
>>> * Loading ALSA modules ...
>>> * Loading: snd-card-0 ...
>>> [ ok ]
>>> * Restoring Mixer Levels ...
>>> [ ok ]
>>>
>>> # lspci -v | grep -i audio
>>> 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
>>> AC'97 Audio Controller (rev a1)
>>>
>>> # cat /etc/kernels/kernel-config-x86_64-2.6.36-gentoo-r5 | egrep -i
>>> 'sound|ac97|alsa'
>>> CONFIG_SOUND=m
>>> CONFIG_SOUND_OSS_CORE=y
>>> CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>>> CONFIG_SND_AC97_CODEC=m
>>> # CONFIG_SND_AC97_POWER_SAVE is not set
>>> # CONFIG_SOUND_PRIME is not set
>>> CONFIG_AC97_BUS=m
>>> CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
>>> # CONFIG_CRYPTO_SALSA20 is not set
>>> CONFIG_CRYPTO_SALSA20_X86_64=m
>>>
>>> # cat /proc/asound/cards
>>> 0 [CK8S ]: NFORCE - NVidia CK8S
>>> NVidia CK8S with ALC850 at irq 20
>>> 1 [UART ]: MPU-401 UART - MPU-401 UART
>>> MPU-401 UART at 0x300, irq 5
>>>
>>> # cat /proc/asound/version
>>> Advanced Linux Sound Architecture Driver Version 1.0.23.
>>>
>>> # cat /proc/asound/oss/sndstat
>>> Sound Driver:3.8.1a-980706 (ALSA v1.0.23 emulation code)
>>> Kernel: Linux jenny 2.6.36-gentoo-r5 #1 SMP Wed Jan 12 16:53:04 EST 2011
>>> x86_64
>>> Config options: 0
>>>
>>> Installed drivers:
>>> Type 10: ALSA emulation
>>>
>>> Card config:
>>> NVidia CK8S with ALC850 at irq 20
>>> MPU-401 UART at 0x300, irq 5
>>>
>>> Audio devices:
>>> 0: NVidia CK8S (DUPLEX)
>>>
>>> Synth devices: NOT ENABLED IN CONFIG
>>>
>>> Midi devices:
>>> 1: MPU-401 UART MIDI
>>>
>>> Timers:
>>> 31: system timer
>>>
>>> Mixers:
>>> 0: Realtek ALC850 rev 0
>>> 1: mixer10
>>
>> Thanks again,
>>
>> dhk
>>
>
>
>
>
Below is the full lsmod. What are the "Intel HD Audio" codecs? I don't
remember doing anything explicitly for them. How do I check them? Thanks.
On 02/13/2011 09:21 PM, Nikos Chantziaras wrote:
> On 02/14/2011 01:19 AM, dhk wrote:
>> I still can't get sound to work. Can someone tell me what's wrong? In
>> addition to my earlier thread below I have INPUT_DEVICES="evdev" and
>> ALSA_CARDS="AC97" in my make.conf.
>
> Dumb question, but did you unmute the channels in 'alsamixer'? I almost
> always had to do that the first time I configured ALSA. For reason the
> defaults seemed to mute the channels.
>
>
>
Yes, all channels are unmuted. Thanks.
02-14-2011, 04:29 PM
walt
ALSA - Still No Sound
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.
02-15-2011, 09:43 AM
dhk
ALSA - Still No Sound
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.
Could this be a bug in the kernel? I haven't had sound for about a
year, but I know it use to work on this hardware. It probably went out
with an upgrade and never came back with a new install.
Any ideas are appreciated.
Thanks,
dhk
02-15-2011, 10:10 AM
laconism
ALSA - Still No Sound
you can use 'lspci' in shell to know something about your sound card,then http://www.gentoo.org/doc/en/alsa-guide.xml has a guide about how to set your hardware and kernel,the information used to make sure the model of your sound card is porvided in 'lspci',look it up clearly
if you don't know how to update the kernel,see herehttp://www.gentoo.org/doc/en/kernel-upgrade.xml
My English is not very good, i wish that you can understand
At 2011-02-15 18:43:57,dhk <dhkuhl@optonline.net> 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.
>
>Could this be a bug in the kernel? I haven't had sound for about a
>year, but I know it use to work on this hardware. It probably went out
>with an upgrade and never came back with a new install.
>
>Any ideas are appreciated.
>
>Thanks,
>
>dhk
>
02-15-2011, 10:35 AM
dhk
ALSA - Still No Sound
On 02/15/2011 06:10 AM, laconism wrote:
> you can use 'lspci' in shell to know something about your sound card,then http://www.gentoo.org/doc/en/alsa-guide.xml has a guide about how to set your hardware and kernel,the information used to make sure the model of your sound card is porvided in 'lspci',look it up clearly
> if you don't know how to update the kernel,see herehttp://www.gentoo.org/doc/en/kernel-upgrade.xml
> My English is not very good, i wish that you can understand
> At 2011-02-15 18:43:57,dhk <dhkuhl@optonline.net> 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.
>>
>> Could this be a bug in the kernel? I haven't had sound for about a
>> year, but I know it use to work on this hardware. It probably went out
>> with an upgrade and never came back with a new install.
>>
>> Any ideas are appreciated.
>>
>> Thanks,
>>
>> dhk
>>
>
>
>
Been there, done that, still no sound. Thanks.
02-25-2011, 11:03 AM
dhk
ALSA - Still No Sound
On 02/15/2011 06:35 AM, dhk wrote:
> On 02/15/2011 06:10 AM, laconism wrote:
>> you can use 'lspci' in shell to know something about your sound card,then http://www.gentoo.org/doc/en/alsa-guide.xml has a guide about how to set your hardware and kernel,the information used to make sure the model of your sound card is porvided in 'lspci',look it up clearly
>> if you don't know how to update the kernel,see herehttp://www.gentoo.org/doc/en/kernel-upgrade.xml
>> My English is not very good, i wish that you can understand
>> At 2011-02-15 18:43:57,dhk <dhkuhl@optonline.net> 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.
>>>
>>> Could this be a bug in the kernel? I haven't had sound for about a
>>> year, but I know it use to work on this hardware. It probably went out
>>> with an upgrade and never came back with a new install.
>>>
>>> Any ideas are appreciated.
>>>
>>> Thanks,
>>>
>>> dhk
>>>
>>
>>
>>
>
> Been there, done that, still no sound. Thanks.
>
>
I think I have made some progress. After getting a new sound card
(Sound Blaster X-Fi) and building X-Fi in the kernel I have some sound,
but it sounds terrible. It's mostly a static noise with a hint of the
actual audio underneath. Also the volume is almost all the way up, but
the volume still sounds low.
The ALSA Soundcard Matrix for this card says:
Sound Blaster X-Fi emu20k1 Details [PCI] Partially supported on 1.0.21;
EAX and Advanced sound options like crystalizer not available
I set the ALSA_CARDS variable in /etc/make.conf to emu20k1 and CA0106,
but neither make a difference. When alsaconf is run it always set the
card as CA0106.
After each change I run alsaconf and alsamixer to make sure all is set
correctly.
When the ALSA_CARDS variable is changed, is there anything that need to
run or be updated?
The following 764 lines is the output from alsa-info.
# cat /tmp/alsa-info.txt.vaKO90QJzT
upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.4.60
!!################################
!!Script ran on: Fri Feb 25 11:47:59 UTC 2011
!!Linux Distribution
!!------------------
Gentoo Base System release 1.12.14
!!DMI Information
!!---------------
Manufacturer: ASUSTek Computer Inc.
Product Name: K8N-E
Product Version: System Version
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.