OK, this isn't a bug, merely a misconfiguration. See MrQuincle's helpful post here:
http://ubuntuforums.org/showthread.php?p=8327304#post8327304 This particular Dimension E520 is now working well after adding the model=5stack option (it has the 5 jacks + SPDIF back panel). -- Sound fading out on Dell E521 with Nvidia and Karmic https://bugs.launchpad.net/bugs/431212 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs