Comment 4 for bug 58832

On Hardy, care to make sure you have linux-ubuntu-modules installed as it has an updated version of ALSA.

Also, this may sound silly but have you also made sure your volume controls are all enabled and unmuted? You can run something like gnome-volume-control and go to Edit->Preferences.

If the issue still exists, per the kernel team's bug policy, can you please attach the following information. Please be sure to attach each file as a separate attachment.

* uname -a > uname-a.log
* cat /proc/version_signature > version.log
* dmesg > dmesg.log
* sudo lspci -vvnn > lspci-vvnn.log

For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies .

Also please note that we will keep this open against the actively developed kernel but against 2.6.15 this will be closed. Thanks.