No audio per Notebook lenovo 3000 n200 ubuntu 8.04

[Ale74]

Ciao a tutti,

sono un nuovo utente di ubuntu ed ho installato la versione 8.04 con gnome sul mio notebook Lenovo 3000 N200.
Il suono non mi funziona. Nelle preferenze dell' audio è tutto OK.
Mi potete aiutare?

Grazie

Hello,

I'm a new utent of ubuntu version 8.04 with gnome as desktop and I had installed them on my notebook Lenovo 3000 N200.
The sound don' t work. In sound preferences are OK.
Can you help me?

Thanks

[Felipe Venegas (fvenegas)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it, because your description didn't include enough information.

Please include the information requested from the "Reporting Sound Bugs" section of [WWW] https://wiki.ubuntu.com/DebuggingSoundProblems as separate attachments.

[Rusty (rusty-curry)]

A common problem with many lenovo notebook computers appears to be that there is a switch for lenovo laptops intel audio drivers that has to be manually enabled.

In the file '/etc/modprobe.d/alsa-base' you enable audio on a Lenovo laptop by adding a line 'options snd-hda-intel model=lenovo' then either reload, or restart alsa ('sudo /etc/init.d/alsa-tools restart' might do it) and audio should start working.

If there is a 'bug' it would be that the installer or the hardware recognition software is not recognizing the lenovo variety of intel sound cards, and either adding the line itself, or offering to try that setting.

See also http://linux.derkeiler.com/Mailing-Lists/SuSE/2008-04/msg01150.html

[alejandro gonzález (ale-g-gonzalez)]

Hello,
This issue should be treated as a bug because it affects a lot of notebooks and leaves them without sound.
Maybe the bug can be renamed, but it should be fixed.

Thanks!

[spaniard81 (spaniard81)]

Thank you Rusty,
and all others on Ubuntu forums

your suggestion helped me get sound working on my Ubuntu @Lenovo 3000 N200, after almost 6 months of ordeal. HOWEVER, there is one thing I would like to suggest in addition -from my stupid experience- to help many others,

To sum up again, do as suggested by others..
>sudo vi /etc/modprobe.d/alsa-base
add to the end of this file
options snd-hda-intel model=lenovo enable=1 index=0
and then
>sudo /etc/init.d/alsa-tools restart

Try playing any sound/music file. Things should work. If not, may be my experience could be of help to you:

I have had followed aforesaid steps on the very first day I installed Ubuntu Hardy on my laptop. Unfortunately, after these editions, during reboot my machine made a very very shrill beep ( i guess it were the Front Mic , just below the touch pad). That almost got my keypad heated up, and I was afraid something might go wrong. Yet, I took a chance and somehow bore that shrill noise to the annoyance of my flatmate, and on successful login put my sound to mute.
Someday later, before trying anything fancy from these forums, to avoid that shrill noise, I set all the volume levels to very minimum using ALSA 'alsamixer'. As a ill consequence, I never could hear anything even though the changes were made rightly.

By doing sudo /etc/init.d/alsa-tools restart, i need not reboot my machine, and therefore I could manage to raise the volume levels using 'alsamixer'. Execute on prompt
>alsamixer
You will see a graphical interface to set volume levels. I set all of them to red levels, except for Front Mic, because setting one of them to 100 % makes my Laptop make that shrill beep again even now, so kept it to 33%.

Strange and funny! But I hope it could be of help to others.

thanks!

[Lluís Rubíes (lluisrubies)]

I think that this bug is the same as the bug i had posted here: https://bugs.launchpad.net/ubuntu/+bug/311586