Re: [gentoo-user] I have two sound cards - and no sound

[Mick]

On Thursday 09 Feb 2017 22:19:24 the...@sys-concept.com wrote:
> On my new box I seem to have two sound cards but no sound.
> 
> cat /proc/asound/cards
>  0 [SB             ]: HDA-Intel - HDA ATI SB
>                       HDA ATI SB at 0xfe400000 irq 16
>  1 [NVidia         ]: HDA-Intel - HDA NVidia
>                       HDA NVidia at 0xfe080000 irq 50
> 
> lspci | grep -i audio
> 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia
> (Intel HDA) (rev 40) 01:00.1 Audio device: NVIDIA Corporation GK208 HDMI/DP
> Audio Controller (rev a1)
> 
> cat /usr/src/linux/.config | grep SND_HDA
> CONFIG_SND_HDA=y
> CONFIG_SND_HDA_INTEL=y
> CONFIG_SND_HDA_HWDEP=y
> # CONFIG_SND_HDA_RECONFIG is not set
> # CONFIG_SND_HDA_INPUT_BEEP is not set
> # CONFIG_SND_HDA_PATCH_LOADER is not set
> # CONFIG_SND_HDA_CODEC_REALTEK is not set
> # CONFIG_SND_HDA_CODEC_ANALOG is not set
> # CONFIG_SND_HDA_CODEC_SIGMATEL is not set
> # CONFIG_SND_HDA_CODEC_VIA is not set
> # CONFIG_SND_HDA_CODEC_HDMI is not set
> # CONFIG_SND_HDA_CODEC_CIRRUS is not set
> # CONFIG_SND_HDA_CODEC_CONEXANT is not set
> # CONFIG_SND_HDA_CODEC_CA0110 is not set
> # CONFIG_SND_HDA_CODEC_CA0132 is not set
> # CONFIG_SND_HDA_CODEC_CMEDIA is not set
> # CONFIG_SND_HDA_CODEC_SI3054 is not set
> # CONFIG_SND_HDA_GENERIC is not set
> CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
> CONFIG_SND_HDA_CORE=y
> CONFIG_SND_HDA_I915=y
> CONFIG_SND_HDA_PREALLOC_SIZE=64
> 
> #speaker-test
> 
> speaker-test 1.1.2
> 
> Playback device is default
> Stream parameters are 48000Hz, S16_LE, 1 channels
> Using 16 octaves of pink noise
> ALSA lib
> /var/tmp/portage/media-libs/alsa-lib-1.1.2/work/alsa-lib-1.1.2/src/pcm/pcm_
> dmix.c:1041:(snd_pcm_dmix_open) unable to open slave Playback open error:
> -2,No such file or directory
> 
> What am I missing?

You are missing the correct sound driver for your hardware.


> Doesn't matter which card I select via "alsamixer" I get:
> 
> " This sound device does not have any controls."

You could use Google to find out which kernel module is required for your 
hardware; or, quicker and potentially more accurate would be to set up *every* 
driver as a module in your kernel and reboot.  The correct module will be 
loaded and will show up in dmesg and lsmod.  Then you can deselect the rest 
and rebuild your kernel.
-- 
Regards,
Mick

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