Question #81047 “Codec + Mixer: IDT 92HD75B3X5 - STAC92xx Analog...” : Questions : alsa-driver package : Ubuntu

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actionparsnip (andrew-woodhead666) said on 2009-08-26:

#1

Can you please provide the output of:

sudo lshw -C sound

Thanks

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onaid (jdiano2004) said on 2009-08-27:

#2

tom@tom-laptop:~$ sudo lshw -C sound
[sudo] password for tom:
  *-multimedia
       description: Audio device
       product: R700 Audio Device [Radeon HD 4000 Series]
       vendor: ATI Technologies Inc
       physical id: 0.1
       bus info: pci@0000:01:00.1
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msi bus_master cap_list
       configuration: driver=HDA Intel latency=0 module=snd_hda_intel
  *-multimedia
       description: Audio device
       product: 82801I (ICH9 Family) HD Audio Controller
       vendor: Intel Corporation
       physical id: 1b
       bus info: pci@0000:00:1b.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=HDA Intel latency=0 module=snd_hda_intel
tom@tom-laptop:~$

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actionparsnip (andrew-woodhead666) said on 2009-08-27:

#3

Looks like you are using an intel sound chip. You may simply need to tell your system to use that and it may be defaulting to the radeon thing.
http://ubuntuforums.org/showthread.php?t=661102
may help.

If not you can try websearching for 82801I which is the sound chip your system is using.

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Mark Rijckenberg (markrijckenberg) said on 2009-08-27:

#4

Hi,

In order to gather essential troubleshooting information about your sound card, please first follow this procedure:

Step 1: First try upgrading ALSA to the newest version, reboot and retest sound.

ALSA upgrade procedure is here:

http://monespaceperso.org/blog-en/2009/05/09/upgrade-alsa-1020-on-ubuntu-jaunty-904/

Step 2: Open Terminal from "Applications->Accessories->
Terminal"

Step 3: Run the following 2 commands (copy/paste each command into the Terminal and then hit <enter> after each command)

wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh

bash alsa-info.sh

When the alsa-info.sh script asks "Do you want to run this script? [y/n]", press y and then hit <enter> to make sure the script actually runs. Please send us the full terminal output after the script has actually run.

Step 4: Run the following command. The command STARTS with the word cat and ENDS with the word snd. So please copy-paste the ENTIRE command below into a Terminal, press enter, then enter password when sudo asks for password, then press enter again.

cat /proc/asound/cards; sudo aptitude install gnome-alsamixer asoundconf-gtk alsa-utils flashplugin-nonfree-extrasound ; asoundconf list; aplay -l; sudo lshw -C sound; ls -lart /dev/snd; cat /dev/sndstat; lspci -nn ; sudo which alsactl; lsmod | grep snd

Step 5: Please post results (copy/paste terminal output) on this thread

Step 6: Please also report on this thread if you cannot hear sound through the speakers, the headphones or cannot hear sound on both.

Step 7: If you are using a dual boot system (with Windows and Ubuntu installed on separate partitions),
then make sure to set the sound volume in Windows to a high level before booting into Ubuntu.
Also make sure to use the special function keys in Windows to make sure the loudspeakers are physically switched ON and working properly in Windows before installing and testing Ubuntu. This step is necessary with certain Toshiba Tecra laptops.

Step 8: Experiment with the audio settings in gnome-alsamixer and asoundconf-gtk until you get sound (hopefully)

Step 9: In System/Administration/Users and Groups , make sure that your user and the root user are members of the following 5 groups:

pulse

pulse-access

pulse-rt

audio

video

Step 10: Run the command gnome-volume-control and set the Sound Theme to "No sounds" (Sound Theme is also accessible via System > Preferences > Sound)

Step 11: Try connecting headphones to different audio jacks/ports on the backpanel of the sound card until you hopefully hear sound

Step 12: If you happen to have two soundcards installed in your pc, one integrated into the motherboard and one inserted into a PCI slot, then try removing the PCI audio card, reboot your pc and retest sound using only the motherboard's soundchip.

======================================================================================================

Please also read the following pages

http://www.ubuntugeek.com/sound-solutions-for-ubuntu-904-jaunty-users.html

http://doc.ubuntu-fr.org/audio_intel_hda (check for correct /etc/modprobe.d/alsa-base.conf options at bottom of this page)

https://help.ubuntu.com/community/SoundTroubleshooting

http://ubuntuforums.org/showthread.php?t=789578&highlight=audacity

for some initial suggestions.

You should add the following string to the /etc/modprobe.d/alsa-base.conf file

options snd-hda-intel model=YOUR_MODEL

Valid model names (that replace YOUR_MODEL) depending on the codec chip, can be found at

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-jaunty.git;a=blob_plain;f=Documentation/sound/alsa/ALSA-Configuration.txt

If you do not know your codec chip name, you can execute the following Terminal command to find out:

cat /proc/asound/card*/codec* | grep Codec

Each combination of audio codec, audio mixer and audio device name requires a very specific configuration in the alsa-base.conf file, if the audio chipset does not work out-of-the-box.

Make sure to set all channels to high volume levels in gnome-alsamixer.

Make sure all the different speakers (including 'Front', 'Master', and 'PCM") are NOT muted and NOT set to low volume levels in gnome-alsamixer.

Copy-paste the following command into a Terminal and press the <enter> key:

sudo which alsactl

to see if there is more than one alsactl executable in your path and remove the wrong/oldest one.

Having more than one alsactl (the older one) can cause your soundsettings to be muted during every boot of the Ubuntu system.

Kind regards,

Mark