[LAU] MIDI keyboard not recognized

Hi all, I've recently installed ubuntustudio 12.04 and after trying it out, i discovered that my M-Audio Oxygen8 v2 MIDI USB (yes it is class compliant) keyboard is not recognised. It was recognised out of the box on my previous setup based on ubuntu 10.04. By not recognized, i mean that it doesn't appear in qjackctl connexions. thus i cant route the connexions correctly... Below are some logs ! How come it doesn't work any more ? How can i correct this ? Thanks a lot Cheers, jy ####LOGS#### $cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xf0400000 irq 45 $aplay -l carte 0: Intel [HDA Intel], périphérique 0: ALC888 Analog [ALC888 Analog] Sous-périphériques: 1/1 Sous-périphérique #0: subdevice #0 carte 0: Intel [HDA Intel], périphérique 1: ALC888 Digital [ALC888 Digital] Sous-périphériques: 1/1 Sous-périphérique #0: subdevice #0 carte 0: Intel [HDA Intel], périphérique 3: HDMI 0 [HDMI 0] Sous-périphériques: 1/1 Sous-périphérique #0: subdevice #0 $lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 0bda:0158 Realtek Semiconductor Corp. USB 2.0 multicard reader Bus 001 Device 004: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314] Bus 004 Device 002: ID 147e:1000 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor Bus 007 Device 002: ID 046d:c062 Logitech, Inc. LS1 Laser Mouse, corded Bus 008 Device 004: ID 0763:0195 Midiman Oxygen 8 v2 $amidi -l Dir Device Name IO hw:1,0,0 USB Oxygen 8 v2 MIDI 1