Could you plesae try installing the linux-alsa-modules-2.6.32-23-generic package from the Ubuntu Audio Dev PPA, http://launchpad.net/~ubuntu-audio-dev/+archive, and reboot, then attempt to reproduce the problem.
Thanks.
Could you plesae try installing the linux-alsa- modules- 2.6.32- 23-generic package from the Ubuntu Audio Dev PPA, http:// launchpad. net/~ubuntu- audio-dev/ +archive, and reboot, then attempt to reproduce the problem.
Thanks.