Comment 8 for bug 998331

I seem to have the same problem. The workaround mentioned by Lucas also works for me. Thanks!

One piece of possibly interesting informations from my syslog when plugging in the device:

Aug 21 19:09:17 thi109 kernel: [199547.991449] usb 1-1.2: new full-speed USB device number 7 using ehci_hcd
Aug 21 19:09:17 thi109 kernel: [199548.161955] usb-audio: Fast Track Pro switching to config #2
Aug 21 19:09:17 thi109 mtp-probe: checking bus 1, device 7: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2"
Aug 21 19:09:17 thi109 kernel: [199548.181098] usb-audio: Fast Track Pro config OK
Aug 21 19:09:17 thi109 mtp-probe: bus: 1, device: 7 was not an MTP device
Aug 21 19:09:17 thi109 udevd[892]: error opening ATTR{/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/sound/card1/controlC1/../uevent} for writing: No such file or directory
Aug 21 19:09:17 thi109 pulseaudio[2174]: [pulseaudio] module-alsa-card.c: Card '1' doesn't exist: No such file or directory
Aug 21 19:09:17 thi109 pulseaudio[2174]: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-M-Audio_FastTrack_Pro-00-Pro" card_name="alsa_card.usb-M-Audio_FastTrack_Pro-00-Pro" namereg_fail=false tsched=yes ignore_dB=no deferred_volume=yes card_properties="module-udev-detect.discovered=1""): initialization failed.

Either a good hint or a missleading piece of knowledge:

/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/ <=== does not exist
/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:2.0/ <=== but this does