Same problem on Dell Vostro 220s desktop with G45 chipset. When enabled to use 5.1 channel the audio crackles.
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu jaunty (development branch) Release: 9.04 Codename: jaunty -- Rasping sound with usb audio and 5.1 surround sounds https://bugs.launchpad.net/bugs/326693 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
