James Stone wrote: > > Is there some output for keys and/or controllers when running "amidi -d -p > > portname"? > > Output is FF for any controller movement. > > Also after moving a controller, it disables sensing of keyboard input for > 10-20 presses. Strange. Please edit alsa-kernel/usb/usbmidi.c; change the line /* #define DUMP_PACKETS */ to #define DUMP_PACKETS and recompile the driver. Then please send me what the driver writes to the system log when you're using controllers/keys. Regards, Clemens