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[Mark Rijckenberg <question79301@xxxxxxxxxxxxxxxxxxxxx>]

Question #79301 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/79301

    Status: Open => Needs information

Mark Rijckenberg requested for more information:
Hi,

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

Step 1: Open Terminal from "Applications->Accessories->
Terminal"

Step 2: 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 3: 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 ; lsmod | grep snd

Step 4: Please post results (copy/paste terminal output) on this thread

Step 5: Please also report on this thread if you cannot hear sound
through the speakers, the headphones or cannot hear sound on both.

Step 6: 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 7: Experiment with the audio settings in gnome-alsamixer and
asoundconf-gtk until you get sound (hopefully)

Step 8: 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 9: Run the command gnome-volume-control and set the Sound Theme to "No sounds" (Sound Theme is also accessible via System > Preferences > Sound)


Step 10: Try connecting headphones to different audio jacks/ports on the backpanel of the sound card until you hopefully hear sound


Step 11: 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.

If sound still does not work, 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/

Kind regards,

Mark

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