[gentoo-user] ALSA - Still No Sound

[dhk <dhkuhl@optonline.net>]

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