Kevin Sookocheff wrote:
   Have a look at
the amidi and/or aseqdump programs. 
 listing devices (amidi -l)  doesn't respond with any devices. 
 
Then your MIDI port isn't recognized.  Just to be sure: this is the
MIDI/gameport on the mainboard?
What ALSA version are you using?  (see /proc/asound/version)
What kernel version?  (uname -a)
What are the options you've set for the snd-mpu401 module?  If ACPI is
enabled in both the BIOS and the kernel, it should be detected
automatically.  Otherwise, you have to use something like
options snd-mpu401 pnp=0 port=0x330 irq=10
in your /etc/modprobe.conf or whatever your distribution uses (and the
port and interrupt numbers must be the same as those configures in the
BIOS setup).
HTH
Clemens