This is the fix/workaround. The ALSA drivers must be downloaded and manually recompiled:
Download the following from http://www.alsa-project.org/main/index.php/Download alsa-driver ( ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.14.tar.bz2 ) alsa-lib ( ftp://ftp.alsa-project.org/pub/lib/alsa-lib-1.0.14a.tar.bz2 ) alsa-utils ( ftp://ftp.alsa-project.org/pub/utils/alsa-utils-1.0.14.tar.bz2 ) After downloading the .tar.bz2 files, extract them to separate folders. In order to compile these packages you'll need some other things as well, such as the linux kernel headers (linux-headers*). If something is missing, you should get an error message upon configure or compilation which should give you a hint on what packages are missing. Try "sudo apt-get install [package-name]" where [package-name] is the missing part. Or, use Synaptic. Then build and install each package by typing these commands from the terminal window: alsa-lib: $ ./configure $ sudo make $ sudo make install alsa-driver: $ ./configure --with-cards=hda-intel $ sudo make $ sudo make install alsa-utils: $ ./configure $ sudo make $ sudo make install Reboot and it should work. You may need to run the ALSA Mixer to reset sound levels and mute/unmute conditions. Some kind of "undo upgrade" ability to revert back to the previous version of whatever was ust installed would be a great feature. It would've saved me now 4 days of trying to track down and employ this solution. -- Wrong modules after Aug 31 2007 updates https://bugs.launchpad.net/bugs/137319 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs