I have the same problem on Ubuntu 8.10 x64. Using OSS works fine but Anything else generates silence or crackling. Sound used to work fine with default settings. I don't know what changed, perhaps a recent update.
ja...@humdinger2:~$ cat /proc/asound/cards 0 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xefff4000 irq 22 -- audio hiss/crackle sound only using pulseaudio https://bugs.launchpad.net/bugs/290480 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