[linux-audio-user] Problem with MPU-401 MIDI

Hello, i'm trying to make my midi keyboard work on my ubuntu edgy box. The keyboard is connected by midi through the Game/Midi port of my ASUS P4P800 Motherboard (Intel audio chipset). amidi -l gives me this Device Name hw:1,0 MPU-401 UART MIDI hw:2,0 Audigy MPU-401 (UART) hw:2,1 Audigy MPU-401 #2 hw:2,2 Emu10k1 Synth MIDI (16 subdevices) hw:2,3 Emu10k1 Synth MIDI (16 subdevices) The Game/Midi port is the hw:1,0 MPU-401 UART MIDI. But when i do a cat /dev/snd/midiC1D0 (which does exist), i get an I/O error. When i do a lsmod | grep snd i get this snd_emu10k1_synth 7808 0 snd_emux_synth 37120 1 snd_emu10k1_synth snd_seq_virmidi 7296 1 snd_emux_synth snd_seq_midi_emul 7296 1 snd_emux_synth snd_seq_dummy 4100 0 snd_seq_oss 34304 0 snd_seq_midi 9088 0 snd_seq_midi_event 7808 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi snd_seq 53360 9 snd_emux_synth,snd_seq_virmidi,snd_seq_midi_emul,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_emu10k1 124576 3 snd_emu10k1_synth snd_util_mem 5120 2 snd_emux_synth,snd_emu10k1 snd_hwdep 9860 2 snd_emux_synth,snd_emu10k1 snd_mpu401 8616 0 snd_mpu401_uart 8704 1 snd_mpu401 snd_intel8x0 33436 0 snd_ac97_codec 96672 2 snd_emu10k1,snd_intel8x0 snd_ac97_bus 2432 1 snd_ac97_codec snd_rawmidi 25600 4 snd_seq_virmidi,snd_seq_midi,snd_emu10k1,snd_mpu401_uart snd_seq_device 8972 8 snd_emu10k1_synth,snd_emux_synth,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_emu10k1,snd_rawmidi snd_pcm_oss 46080 0 snd_mixer_oss 18560 1 snd_pcm_oss snd_pcm 80520 5 snd_emu10k1,snd_intel8x0,snd_ac97_codec,snd_pcm_oss snd_timer 23172 3 snd_seq,snd_emu10k1,snd_pcm snd 55428 19 snd_emux_synth,snd_seq_virmidi,snd_seq_oss,snd_seq,snd_emu10k1,snd_hwdep,snd_mpu401,snd_mpu401_uart,snd_intel8x0,snd_ac97_codec,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 9952 1 snd snd_page_alloc 10504 3 snd_emu10k1,snd_intel8x0,snd_pcm Since the keyboard works under winxp, i think it's more a driver than a hardware problem. Has anybody any idea that could help me ? Thank you in advance.