I have no sound on my ubuntu and I do not know why. I saw a lot of posts about that, I tried a lots of solutions that I found (especially this one) but it still does not work. I suspect alsamixer. I can't adjust the sound.

http://img15.hostingpics.net/pics/447765Screenshotfrom20120621140430.png

I tried to reinstall alsa mixer using this tutorial but it seems the package does not exist anymore.

E: Unable to locate package linux-alsa-driver-modules-3.2.0-25-generic

E: Couldn't find any package by regex 'linux-alsa-driver-modules-3.2.0-25-generic'

Here are my configuration:

cat /proc/driver/nvidia/version

NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.40 Thu Apr 5 21:37:00 PDT 2012 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)

aplay -l List of PLAYBACK Hardware Devices **

card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0

card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0

grep eld_valid /proc/asound/NVidia/eld*

/proc/asound/NVidia/eld#0.0:eld_valid 0

/proc/asound/NVidia/eld#0.1:eld_valid 0

Thanks in advance for your help.