No sound, dummy output! [Solved]

[laminko]

Hi all,

I have a problem after upgrading sabayon 10. I don't know what's going on. Audio device was dummy output and build-in audio analog stereo was also dim (disabled).

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uname -a
=============
Linux localhost 3.3.0-sabayon #1 SMP Thu May 24 13:54:46 UTC 2012 x86_64 Pentium(R) Dual-Core CPU T4500 @ 2.30GHz GenuineIntel GNU/Linux

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aplay -l
=============
aplay: device_list:252: no soundcards found...

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lspci -v
=============
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
        Subsystem: Acer Incorporated [ALI] Device 0260
        Flags: bus master, fast devsel, latency 0, IRQ 45
        Memory at d6700000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [130] Root Complex Link
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd-hda-intel

I found new strange things.

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lsmod | grep snd_hda
=============
snd_hda_codec_hdmi     19853  1
snd_hda_codec_realtek    95840  1
snd_hda_intel          19272  0
snd_hda_codec          63776  3 snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi
snd_hwdep               4542  1 snd_hda_codec
snd_pcm                56106  3 snd_hda_codec,snd_hda_intel,snd_hda_codec_hdmi
snd_page_alloc          5925  2 snd_pcm,snd_hda_intel
snd                    45020  7 snd_timer,snd_pcm,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_hdmi

But, in alsa.conf:

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nano /etc/modprobe.d/alsa.conf
=============
# Alsa kernel modules' configuration file.

# ALSA portion
alias char-major-116 snd
# OSS/Free portion
alias char-major-14 soundcore

## IMPORTANT:
## You need to customise this section for your specific sound card(s)
## and then run `update-modules' command.
## Read alsa-driver's INSTALL file in /usr/share/doc for more info.

# OSS/Free portion - card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

alias /dev/mixer snd-mixer-oss
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss

thanks,
LMK

[laminko]

I found the solution. The dummy output problem is that my user name is not in audio group. So, I just type the following command. And then, I restarted my laptop.

>>>sudo su
>>>gpasswd -a username audio
>>>init 6

Actually, my laptop has been already installed drivers and modules. It is just user is not in audio group. I found the solution in http://www.gentoo.org/doc/en/alsa-guide.xml.

Thanks,
LMK