[Linux-bruxelles] et pour Debian alors ? Fwd:SoundTroubleshootingProcedure - Community Ubuntu Documentation
Aldo
info at brlspeak.net
Ven 20 Mai 17:30:29 CEST 2011
Hello les audiophiles et autres gurus du son!
l'info que j'ai dénichée sur le net concernant le blème de son bcp trop
faible en sortie, parle d'Ubuntu; OK, c utile et en + ça prouve que y a un
gros problème, et à voir les distribs auxquelles cette URL réfère ça ne date
pas d'hier.....
donc logique qq part que je tombe moi aussi sur ce "même?" problème en
installant une Deb Squeeze toute fraîche; c bien ce que je pensais: le
problème n'est pas lié à l'une ou l'autre distrib spécifique, mais donc
quasi tout le monde possédant un chipset intel hda doit potentiellement
rencontrer ce souci ?
Du coup ma question est simple: et sous Debian Squeeze on fais quoi ?
vu que les urls ppa d'Ubuntu ne sont en aucun cas
intervertibles/partageables avec une Debian ?
J'ose même du coup me demander pourquoi Debian Squeeze étant stable ils
publient quand-même une version buguée à ce point d'ALSA/Pulse ?
Enfin, n'y a-t-il pas moyen de supprimer complètement Pulse pour n'utiliser
sous Debian QUE ALSA ? Sous Ubuntu la doc propose de supprimer puis
réinstaller alsa-base et alsa-utils; es-ce possible de simuler cette
possible solution sous Deb; si oui comment ?
Fwd:
SoundTroubleshootingProcedure - Community Ubuntu Documentation
X-URL: https://help.ubuntu.com/community/SoundTroubleshootingProcedure
#[1]Start [2]Wikiopmaak [3]Afdrukvoorbeeld [4]Search [5]Index
[6]Glossary [7]Help
[8]Ubuntu
[9]________________________ [10]Search
[11][help-faq.png] Community Documentation
* [12]Login to Edit
[13]Ubuntu Documentation > [14]Community Documentation >
[15]SoundTroubleshootingProcedure
* [16]SoundTroubleshootingProcedure
Inhoud
1. [17]Step 1
2. [18]Step 2
3. [19]Step 3
4. [20]Step 4
5. [21]Step 5
6. [22]Step 6
7. [23]Step 7
8. [24]Step 8
9. [25]Step 9
10. [26]Step 10
11. [27]Step 11
12. [28]Step 12
13. [29]Step 13
14. [30]Step 14
15. [31]Step 15
16. [32]Step 16
17. [33]Step 17
18. [34]Other Useful Information to Quote
19. [35]OSS4 for low performance CPU's
1. [36]For Ubuntu 10.04
2. [37]For Ubuntu 10.10
20. [38]External Links
Follow his procedure to gather essential troubleshooting information
about your sound card. This information will be useful in posting a
question to launchpad:
* [39]https://answers.launchpad.net/ubuntu/+addquestion
Step 1
If you are using Ubuntu 11.04 (Natty), then simply skip this step.
If you are using Ubuntu 10.10 (Maverick), then execute this command and
reboot:
sudo add-apt-repository ppa:ricotz/unstable; sudo apt-get update; sudo apt-get
--reinstall install alsa-base alsa-utils
If you are using Ubuntu 10.04 (Lucid), use [40]this link
If you are using Ubuntu 9.10 (Karmic), then you should upgrade to
Ubuntu 10.04.2 LTS or newer versions. End of life date for Ubuntu 9.10
was April 2011.
Step 2
If you are using the Gnome interface, open [41]the Terminal console via
"Applications->Accessories->Terminal"
If you are using the Unity interface, the easiest way to open the
Terminal is to use the 'search' function on the dash. Or you can click
on the 'More Apps' button, click on the 'See more results' by the
installed section, and find it in that list of applications. A third
way, available after you click on the 'More Apps' button, is to go to
the search bar, and see that the far right end of it says 'All
Applications'. You then click on that, and you'll see the full list.
Then you can go to Accessories > Terminal after that.
So the methods in Unity are:
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal
In gnome-terminal, make sure that unlimited scrolling is enabled:
* click on Edit > Profiles > "Default" profile > Scrolling. Choose
"Unlimited" as scrolling option. Click Close and Close again.
Step 3
Reboot your computer. Then run the following 2 diagnostic commands.
Tip: If you have a wheel mouse or 3-button mouse, you do not need to
type the commands into the Terminal. Instead, copy the commands from
this web page and paste them into the terminal. To do this, move your
mouse cursor over the start of the command written on the Web page.
Then press the left mouse button and drag the mouse till the end of the
command to highlight the whole command; then release the mouse button.
Then press the middle mouse button or mouse wheel anywhere inside the
Terminal. The command should now be printed in the Terminal without
errors. Now press <Enter> to execute the command.
wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh
bash alsa-info.sh --stdout
Post the full Terminal output after the script has actually run by
[42]creating a new question in launchpad then copy&paste the terminal
output into your newly created question. Carefully inspect the Terminal
output of the ALSA Information script that was generated by the
previous diagnostic command
bash alsa-info.sh --stdout
After upgrading ALSA and rebooting the computer make sure that the ALSA
driver version, library version and utilities version are all exactly
the same version number.
The Terminal output after running the ALSA information script should
contain something like this:
# ALSA Version
# Driver version: 1.0.23
# Library version: 1.0.23
# Utilities version: 1.0.23
If the Driver, Library and Utilities version numbers are not equal,
this probably due to one of the following issues:
1. One of the ALSA components was not successfully upgraded during step
1 in this procedure
2. ALSA was correctly installed or upgraded, but a wrong / old kernel
was booted instead of the most recent kernel version. In that case,
boot the newest kernel version (that is available in the
standard/default Ubuntu repositories) and then retest sound.
For example: if you installed or upgraded to Ubuntu 10.10 (Maverick
Meerkat edition), make sure the running kernel version is
2.6.35-22-generic or higher. Or else sound will not work!
For example: if you installed or upgraded to Ubuntu 10.04 (Lucid Lynx
edition), make sure the running kernel version is 2.6.32-21-generic or
higher. Or else sound will not work!
For example: if you installed or upgraded to Ubuntu 9.10 (Karmic Koala
edition), make sure the running kernel version is 2.6.31-14-generic or
higher. Or else sound will not work!
Step 4
Copy & paste the following diagnostic command into the Linux Terminal,
then press <Enter>. The command starts with the command cat and ends
with the word sound. (Do not copy & paste this diagnostic command from
an email message into the Terminal, as that will only copy part of the
command.) When asked for your password, type your normal user password
(no stars are given as you type); then press <Enter> again.
Tip: If you have a wheel mouse or 3-button mouse, you do not need to
type the commands into the Terminal. Instead, copy the commands from
this web page and paste them into the terminal. To do this, move your
mouse cursor over the start of the command written on the Web page.
Then press the left mouse button and drag the mouse till the end of the
command to highlight the whole command; then release the mouse button.
Then press the middle mouse button or mouse wheel anywhere inside the
Terminal. The command should now be printed in the Terminal without
errors. Now press <Enter> to execute the command.
cat /proc/asound/{version,cards,devices,hwdep,pcm,seq/clients}; sudo rm /etc/as
ound.conf; sudo rm -r ~/.pulse ~/.asound* ;sudo rm ~/.pulse-cookie; sudo apt-ge
t update; sudo apt-get install aptitude; sudo aptitude install paman gnome-alsa
mixer libasound2-plugins padevchooser libsdl1.2debian-pulseaudio; sudo lshw -sh
ort;ls -lart /dev/snd; cat /dev/sndstat; lspci -nn; sudo which alsactl; sudo
fuser -v /dev/dsp /dev/snd/* ; dpkg -S bin/slmodemd; dmesg | egrep 'EMU|probe|e
mu|ALSA|alsa|ac97|udi|snd|ound|irmware'; sudo /etc/init.d/sl-modem-daemon statu
s; sudo grep model /etc/modprobe.d/* ; sudo dmidecode|egrep 'Manufact|Product';
lsmod | egrep 'snd|usb|midi|udio'; aplay -l; sudo lshw -C sound
!!! Post the full Terminal output into the original question that you
previously created at answers.launchpad.net
!!! Also mention how you want to generate sound output: analog output
via desktop speakers, digital output via an HDMI connection to the TV,
via headphones, etc ...
Step 5
Reboot and retest sound using the headphones and the speakers. Do not
run a Gnome session in "Gnome Failsafe" mode; speakers are disabled in
"Gnome Failsafe" mode.
!!! After rebooting, verify that you have posted the full Terminal
output from step 3 and step 4 into the original question that you
previously created at answers.launchpad.net
!!! Also mention how you want to generate sound output: analog output
via desktop speakers, digital output via an HDMI connection to the TV,
via headphones, etc ...
Step 6
Run the following command in a Terminal:
pavucontrol
In this application - [43]PulseAudio Volume Control - switch to the
"Playback" tab and increase System sounds volume to 100%
Step 7
Run the following command in a Terminal:
gnome-alsamixer
In this application, make sure to set all channels to high volume
levels. Make sure the different speakers (especially 'Front', 'Master',
and 'PCM") are NOT muted and NOT set to low volume levels in
gnome-alsamixer.
On some Toshiba laptop models (T40, T43p, ... R51e ...), the audio is
muted, if either Headphone or Line Jack are NOT muted in alsamixer. See
also ALSA Wiki FAQ [1]. Also, if Headphone Sense or Line Jack Sense are
unmuted, audio is dead (R52, X40). By default the Sense settings are
not shown in GNOME. A channel is muted in alsamixer, if there is an
"MM" under that specific channel/volume bar.
On some Toshiba laptop models, setting the PCM channel volume higher
than 70% in alsamixer, may result in clipping (for example: very
"harsh" and distorted sound both on the internal speakers and on
headphones plug), regardless of the Master channel.
[44]Problem with audio clipping
HP Laptops in the dv5, dv6, dv7 series and some HP Mini netbook
computers have a strange problem in Ubuntu. When you plug in the
headphones, you will hear sound via the headphones and speakers at the
same time. The following link should provide a workaround for that
issue:
[45]Problem with headphones
On the HP Compaq nx8220, you can solve the simultaneous
speaker/headphone output issue by enabling the Headphone Jack Sense
option in the gnome-alsamixer application.
Step 8
Report if you cannot hear sound through the speakers, the headphones or
cannot hear sound on both.
Step 9
If you are using a dual boot system (even 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 10
In System/Administration/Users and Groups, make sure that your normal
user and the root user are members of the following 5 groups:
pulse
pulse-access
pulse-rt
audio
video
Step 11
Run the command gnome-volume-control and set the Sound Theme to "No
sounds". The Sound Theme tool is also accessible via System >
Preferences > Sound
Step 12
Try connecting headphones to different audio jacks/ports on the
back-panel of the sound-card until you hopefully hear sound
Step 13
In the BIOS, reset the BIOS values to default values.
If you happen to have two sound-cards installed in your pc, one
integrated into the motherboard - for example: an hda-intel audiochip -
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 on-board
audio chip.
If you absolutely need to get the PCI audio card working, try disabling
the motherboard's on-board audio chip via the BIOS. Then retest sound
in Ubuntu.
Save the change in the BIOS and reboot.
Step 14
If ALSA is still not loading any driver for your soundcard (for
example: a Soundblaster Audigy PCI card) after upgrading to the newest
version of ALSA, try reseating the PCI audio card into a different PCI
slot on your PC's motherboard.
Step 15
Specify the exact model and make of your PC (if possible) in the new
thread that you created at Launchpad Answers Forum.
Step 16
If you want to enable S/PDIF audio output, then unmute and increase
volume on the S/PDIF and S/PDIF playback channels in the alsamixer
application. Use the M key to toggle between muted (MM) and unmuted
(00) states.
Alternative way to enable SPDIF output automatically on login (tested
on SoundBlaster Audigy): add following lines to /etc/rc.local:
# Use COAX-digital output
amixer set 'IEC958 Optical' 100 unmute
amixer set 'Audigy Analog/Digital Output Jack' on
You can see the name of your card's digital output with:
amixer scontrols
If the optical/coaxial digital output of your motherboard/sound card is
not working or stopped working, and you have already enabled and
unmuted it in alsamixer, run
sudo iecset audio on
You can also put this command in /etc/rc.local , as it may stop working
after a reboot.
Step 17
If the HDMI output of your motherboard/sound card is not working or
stopped working, and have already enabled and unmuted it in alsamixer,
try the following procedure:
[46]https://answers.launchpad.net/ubuntu/+question/139924
Query for Playback Devices:
aplay -l
* *** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA
NVidia], device 0: ALC1200 Analog [ALC1200 Analog]
+ Subdevices: 1/1 Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC1200 Digital [ALC1200
Digital]
+ Subdevices: 1/1 Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
+ Subdevices: 0/1 Subdevice #0: subdevice #0
Now that we have the info for the HDMI device, try a test, In the
example below, 0 is the card number and 3 is the device number.
aplay -D plughw:0,3 /usr/share/sounds/alsa/Front_Center.wav
If aplay does not output any errors, but still no sound is heared,
"reboot" the receiver, monitor or tv set. Since the HDMI interface
executes a handshake on connection, it might have noticed before that
there was no audio stream embedded, and disabled audio decoding.
If the test is successful, edit/create /etc/asound.conf to set HDMI as
the default audio device, reboot, and audio should now work. (Is there
a better way to do this?)
cat /etc/asound.conf
* pcm.!default {
+ type plug slave.pcm {
o type hw card 0 device 3
}
}
__________________________________________________________________
Other Useful Information to Quote
The following string needs to be added 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 in "[47]HD-Audio-Models ALSA documentation".
You can find your audio CODEC chip name by running this Terminal
command:
cat /proc/asound/car*/co* | grep Codec
Please try the following command instead, if the previous command does
not show the audio CODEC chip name:
cat /proc/asound/car*/co*/* | head
You can find your audio MIXER name by running this Terminal command:
cd ~; wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh ; bash alsa
-info.sh --stdout |grep "ixer name"
You can find your audio DEVICE name by running this Terminal command:
lspci -nn|egrep 'ultimedia|udio|sound|AC97|ac97|EMU'
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.
To see if there is more than one alsactl executable in your path and to
remove the wrong/oldest one, copy&paste the following command into a
Terminal and press the <enter> key:
sudo which alsactl
Having more than one alsactl can cause your sound settings to be muted
during every boot of the Ubuntu system.
To understand the various hda_intel related errors that might be
mentioned at the end of the ALSA Information script output that was
uploaded to the Pastebin website, read the following documentation:
[48]HD-Audio documentation
__________________________________________________________________
OSS4 for low performance CPU's
How to replace Alsa with OSS4 to improve sound quality on low
performance CPU's
!!! WARNING: Only try installing OSS4 as a LAST resort if ALL the
previous steps did not help resolve your sound output issues using the
ALSA sound system! Installing OSS4 should only be attempted by people
who know what they are doing and are very experienced with using Linux
systems.
Do not try to fix audio if it is not broken when using ALSA and
[49]PulseAudio...
Many applications use the OSS API for sound because it is
well-documented and portable across several platforms (Linux, Solaris,
BSD, etc).
For Ubuntu 10.04
If you want to use OSS4 instead of ALSA in Ubuntu 10.04, follow the
procedure here:
[50]OSS4 guide for Ubuntu 10.04
For Ubuntu 10.10
If you want to use OSS4 instead of ALSA in Ubuntu 10.10, follow the
procedure here:
[51]OSS4 guide for Ubuntu 10.10
__________________________________________________________________
External Links
For some initial suggestions, also read the following pages
* [52]https://help.ubuntu.com/community/SurroundSound
* [53]http://ubuntuguide.org/wiki/Ubuntu:Maverick#Sound
*
[54]http://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architectu
re
*
[55]http://drowninginbugs.blogspot.com/2009/10/caveats-for-audio-in-910
.html
* [56]https://wiki.ubuntu.com/DebuggingSoundProblems/KarmicCaveats
*
[57]http://ubuntuforums.org/showthread.php?t=789578&highlight=audacity
* [58]http://ubuntuforums.org/showthread.php?t=205449
*
[59]http://www.ubuntugeek.com/sound-solutions-for-ubuntu-904-jaunty-use
rs.html
* [60]https://help.ubuntu.com/community/SoundTroubleshooting
!!! Check for correct /etc/modprobe.d/alsa-base.conf options on the
following pages:
* [61]http://ubuntuforums.org/showthread.php?t=1043568
* [62]http://doc.ubuntu-fr.org/audio_intel_hda
*
[63]http://www.mjmwired.net/kernel/Documentation/sound/alsa/HD-Audio-Mo
dels.txt
*
[64]http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-karmic.git;a=blob_plai
n;f=Documentation/sound/alsa/ALSA-Configuration.txt
__________________________________________________________________
[65]CategoryAudio
SoundTroubleshootingProcedure (laatst bewerkt op 2011-05-15 10:04:18
door [66]Mark Rijckenberg)
* [67]Page History
__________________________________________________________________
The material on this wiki is available under a free license, see
[68]Copyright / License for details
You can contribute to this wiki, see [69]Wiki Guide for details
References
1. https://help.ubuntu.com/community/UserDocumentation
2. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=raw
3. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=print
4. https://help.ubuntu.com/community/FindPage
5. https://help.ubuntu.com/community/TitleIndex
6. https://help.ubuntu.com/community/WordIndex
7. https://help.ubuntu.com/community/HelpOnFormatting
8. http://help.ubuntu.com/
9. form field = text entry field
10. form field = submit button
11. https://help.ubuntu.com/community
12. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=login
13. https://help.ubuntu.com/
14. https://help.ubuntu.com/community
15. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=fullsearch&context=180&value=linkto%3A%22SoundTroubleshootingProcedure%22
16. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=fullsearch&context=180&value=linkto%3A%22SoundTroubleshootingProcedure%22
17. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 1
18. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 2
19. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 3
20. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 4
21. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 5
22. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 6
23. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 7
24. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 8
25. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 9
26. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 10
27. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 11
28. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 12
29. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 13
30. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 14
31. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 15
32. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 16
33. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Step 17
34. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#Other Useful Information to Quote
35. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#OSS4 for low performance CPU's
36. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#For Ubuntu 10.04
37. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#For Ubuntu 10.10
38. https://help.ubuntu.com/community/SoundTroubleshootingProcedure#External Links
39. https://answers.launchpad.net/ubuntu/+addquestion
40. http://monespaceperso.org/blog-en/2010/05/02/upgrade-alsa-1-0-23-on-ubuntu-lucid-lynx-10-04/
41. https://help.ubuntu.com/community/UsingTheTerminal#Starting%20a%20Terminal
42. https://answers.launchpad.net/ubuntu/+addquestion
43. https://help.ubuntu.com/community/PulseAudio
44. http://www.thinkwiki.org/wiki/Problem_with_audio_clipping
45. http://digitizor.com/2009/10/22/fix-headphone-sound-problem-hp-laptop-linux/
46. https://answers.launchpad.net/ubuntu/+question/139924
47. http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt
48. http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio.txt
49. https://help.ubuntu.com/community/PulseAudio
50. http://www.ubuntugeek.com/howto-install-oss4-in-ubuntu-10-04-lucid-for-better-sound-quality.html
51. http://ubuntuforums.org/showthread.php?t=1594215
52. https://help.ubuntu.com/community/SurroundSound
53. http://ubuntuguide.org/wiki/Ubuntu:Maverick#Sound
54. http://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture
55. http://drowninginbugs.blogspot.com/2009/10/caveats-for-audio-in-910.html
56. https://wiki.ubuntu.com/DebuggingSoundProblems/KarmicCaveats
57. http://ubuntuforums.org/showthread.php?t=789578&highlight=audacity
58. http://ubuntuforums.org/showthread.php?t=205449
59. http://www.ubuntugeek.com/sound-solutions-for-ubuntu-904-jaunty-users.html
60. https://help.ubuntu.com/community/SoundTroubleshooting
61. http://ubuntuforums.org/showthread.php?t=1043568
62. http://doc.ubuntu-fr.org/audio_intel_hda
63. http://www.mjmwired.net/kernel/Documentation/sound/alsa/HD-Audio-Models.txt
64. http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-karmic.git;a=blob_plain;f=Documentation/sound/alsa/ALSA-Configuration.txt
65. https://help.ubuntu.com/community/CategoryAudio
66. https://launchpad.net/~markrijckenberg
67. https://help.ubuntu.com/community/SoundTroubleshootingProcedure?action=info
68. https://help.ubuntu.com/community/License
69. https://help.ubuntu.com/community/WikiGuide
----- End forwarded message -----
==
You can lead a horse to water,
but you can't make it drink !
<http://www.phrases.org.uk/>
Plus d'informations sur la liste de diffusion Linux-bruxelles