David Baron wrote: > I added lines that were in modules.conf to modprobe.conf. > Now and mpu401 driven devices is active! > The USB still is not, though snd-usb-audio is registering on boot and > deregistering on shutdown. Does the USB device show up in /proc/bus/usb/devices? Probably the OSS drivers ("usb-midi" or "audio") are loaded. If so, deactivate them or put them into /etc/hotplug/blacklist. Regards, Clemens