I'm havign the same problem here. Here's some more details -- My fastTrack pro used to work perfectly on 11.10 (indeed I bought it specifically because this was known). It seems something has changed in 12.04 that has broken it.
We've tried the fast Track on five different 12.04 machines and they all have the same problem. We have also tried a simular USB external soundcard, a Roland Quadcapture on my machine and had the same problem. The problem occurs both with PulseAudio, and when Pulse is disabled and only Jack is running. So I think it must be a bug in the ALSA-USB driver in 12.04. It's nondeterministic, resettign the machine several times produces at least four possible behaviours: 1. sound card appears and actually works in pulse (rare) 2. sound card appears and can play back test sounds in pulse, but no input signal 3. sound card appears, but selecting it as a pulse input crashes the pulse console 4. sound card does not appear at all (in either pulse or jack) (but is still visiable with lsusb) I was unable to update my ALSA as in the sound problem guide, due to: $ sudo apt-get install linux-alsa-driver-modules-$(uname -r) Building dependency tree Reading state information... Done E: Unable to locate package linux-alsa-driver-modules-3.2.0-32-generic E: Couldn't find any package by regex 'linux-alsa-driver-modules-3.2.0-32-generic' so instead I did the apt-gets from https://help.ubuntu.com/community/SoundTroubleshootingProcedure and uploaded my ALSA information to http://www.alsa-project.org/db/?f=78dd0a776ffcaaff467b9f6425c25f185b6fc26a This seems to be an extremely important bug as my tests suggest that it may affect /all/ USB sound devices, if it's a problem at the ALSA-USB driver level. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1048326 Title: fast-track-pro usb// pulseaudio - MIC INPUT problem To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1048326/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
