I also have this problem. Upgraded the kernel to 3.12.0rc1 from the kernel PPA (http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.12-rc1-saucy/) and USB sound card stopped working... commenting out the 'snd-usb-audio index=-2' fixed the problem.
For reference lsusb gives -- Bus 004 Device 004: ID 0d8c:0102 C-Media Electronics, Inc. CM106 Like Sound Device -- There are no other soundcards in this system, which is running Xubuntu 13.04 _Raring Ringtail_ - Release amd64 (20130423.1). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1227149 Title: USB audio sound card not recognized after update to Linux 3.12-rc1-saucy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1227149/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
