In order to try and compare why the live cd 12.04.3 works, I booted into it (where the sennheiser works fine) and took the following traces to help compare with the installed 12.04.3 which does not work:
lsusb -vvv output: http://paste.ubuntu.com/6707885/ dmesg trace after boot: http://paste.ubuntu.com/6707904/ udevadm info -a -p http://paste.ubuntu.com/6707908/ /usr/share/alsa/cards/USB-Audio.conf http://paste.ubuntu.com/6707914/ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1266343 Title: Sennheiser USB headset not listed as device in aplay -l Status in “alsa-driver” package in Ubuntu: Incomplete Bug description: I have a Sennheiser USB headset model PC 8 USB which when plugged in shows in dmesg (see bellow) however the device is not listed via "aplay -l" and does not show up as a valid input/output device in sound settings or pavucontrol. I have installed and updated/upgraded using sudo add-apt-repository ppa:ubuntu-audio-dev/ppa Kernel: 3.8.0-35-generic #50~precise1-Ubuntu SMP Wed Dec 4 17:25:51 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Ubuntu: 12.04.3 also-info.sh output mentioned on https://help.ubuntu.com/community/SoundTroubleshootingProcedure posted: http://www.alsa- project.org/db/?f=c35e4d07adf0a31647f2c9ddf9f46df75ba6c809 /usr/share/alsa/cards/USB-Audio.conf here: http://paste.ubuntu.com/6700927/ *** DMESG trace **** [ 6393.031441] usb 3-1: new full-speed USB device number 4 using xhci_hcd [ 6393.052766] usb 3-1: New USB device found, idVendor=1395, idProduct=0025 [ 6393.052771] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 6393.052774] usb 3-1: Product: Sennheiser USB headset [ 6393.052776] usb 3-1: Manufacturer: Sennheiser Communications [ 6393.053749] input: Sennheiser Communications Sennheiser USB headset as /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.3/input/input22 [ 6393.053929] hid-generic 0003:1395:0025.0008: input,hidraw4: USB HID v1.00 Device [Sennheiser Communications Sennheiser USB headset] on usb-0000:00:14.0-1/input3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1266343/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp