I'm having trouble with MIDI & USB & FC4 & Mac MINI & Alsa. It worked a couple days ago, but now it's broken. As far as I know, all I did to break it was reboot. So let me describe: I have a Mac mini, (which is Power PC) which I loaded FC4 on to. I wish to use raw MIDI with a program I've written. I plug in a Edirol UM-1X USB MIDI interface, and the following shows up in /var/log/messages: Jun 27 08:43:16 mini kernel: usb 4-1: new full speed USB device using ohci_hcd and address 3 Jun 27 08:43:16 mini kernel: usb-midi: Found MIDISTREAMING on dev 0582:0052, iface 0 Jun 27 08:43:16 mini kernel: usb-midi: Found MIDIStreaming device corresponding to Release 1.00 of spec. Jun 27 08:43:16 mini kernel: usb-midi: Found IN Jack 0x10 EMBEDDED Jun 27 08:43:16 mini kernel: usb-midi: Found IN Jack 0x20 EXTERNAL Jun 27 08:43:16 mini kernel: usb-midi: Found OUT Jack 0x30 EMBEDDED, 1 pins Jun 27 08:43:16 mini kernel: usb-midi: Found OUT Jack 0x40 EXTERNAL, 1 pins Jun 27 08:43:16 mini kernel: usb-midi: fetchString(2) Jun 27 08:43:16 mini kernel: usb-midi: fetchString = 4 Jun 27 08:43:16 mini kernel: usbmidi: found [ UM-1 ] (0x0582:0x0052), attached: Jun 27 08:43:16 mini kernel: usbmidi: /dev/midi00: in (ep:81 cid: 0 bufsiz:64) out (ep:01 cid: 0 bufsiz:64) That looks OK, I think. However, the MIDI doesn't show up in alsa. Here's /proc/asound/devices: [root@mini etc]# cat /proc/asound/devices 1: : sequencer 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 0: [0- 0]: ctl 33: : timer Help! Where can I look for hints as to what's happening? Note: I've used this device successfully on Suse 9.2/i386. I've also used it (once!) successfully on a different Mac mini, FC4. Thanks. Rich