I newly installed ubuntu 8.04 distro. on my IBM lenovo n200. every thing works fine. except for the sound. The sound card is detected the driver is installed and loaded but it just won't work.

I have tried removing then installing alsa-base and alsa-utils but nothing.

I have tired tinkering with the mixers but still nothing.

I looked through lots of documentations and suggested solutions with no luck.

I believe that my problem is simple. but I need some one to check what I have done so far to see if I have done it right.

any one with experience with this kind of problem please help.

Look at "Comprehensive Sound Problem Solutions Guide" on http://ubuntuforums.org/showthread.php?t=205449

I have the same hardware. Ubuntu Intrepid does not have any problems with sound. Have you tried to run 'alsamixer' in a terminal to check the mixer?

thank you arochester I have looked at it and tried every thing in it.
tiresia, I tried tinkering with alsamixer but nothing happened.

yesterday I found the solution at this link.

apparently you have to add this line "options snd_hda_intel model=lenovo" at the end of this file /etc/modprobe.d/alsa-base.
http://ubuntuforums.org/archive/inde...t-842700.html\
http://ubuntuforums.org/showthread.php?t=1043568

I think these two links will solve the sound problem for any laptop running ubuntu 7.10 or 8.04 or 8.10

thank you guys for the help.

this worked beautifully on my lenovo 3000 n200 thank you (i know this thread is incredibly old but it still solved my problem)