# aptitude dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following packages are BROKEN: pulseaudio The following packages will be REMOVED: libasound2-plugins{a} The following packages will be upgraded: alsa-utils libasound2 2 packages upgraded, 0 newly installed, 1 to remove and 1 not upgraded. Need to get 1435kB of archives. After unpacking 274kB will be freed. The following packages have unmet dependencies: pulseaudio: Depends: libasound2-plugins but it is not installable The following actions will resolve these dependencies: Remove the following packages: alsa-utils fast-user-switch-applet gdm gdm-guest-session Keep the following packages at their current version: libasound2 [1.0.17a-0ubuntu4 (now)] libasound2-plugins [1.0.17-0ubuntu4 (jaunty, now)] Leave the following dependencies unresolved: alsa-base recommends alsa-utils