On Fri, 02 Dec 2005 18:58, Chris Norris wrote: > Hi all - I would appreciate if someone is able to help get my Roland > PC-300 midi keyboard controller to work. > > The short problem seems to me that although the keyboard is being > recognised via USB OK, it is not being correctly/completely identified > by ALSA. > > When I plug it in I get in my system log: > Nov 28 17:17:57 dukla kernel: usb 3-2: new full speed USB device using > uhci_hcd and address 3 > Nov 28 17:17:58 dukla kernel: midi: probe of 3-2:1.0 failed with error -5 > Nov 28 17:17:58 dukla kernel: midi: probe of 3-2:1.1 failed with error -5 > Nov 28 17:17:58 dukla kernel: usbmidi: found [ Roland PC-300 ] > (0x0582:0x0008), attached: > Nov 28 17:17:58 dukla kernel: usbmidi: /dev/midi00: in (ep:81 cid: 0 > bufsiz:64) out (ep:01 cid: 0 bufsiz:64) These messages mean that the old OSS-like "usb-midi" driver has been loaded, taking over the device, which is recognized and probably working with this driver. > Nov 28 17:17:58 dukla kernel: usbcore: registered new driver midi > Nov 28 17:17:58 dukla kernel: usbcore: registered new driver snd-usb-audio The alsa driver has been loaded too, but it doesn't find a free interface in the PC-300 to attach. > Even better, it shows up as a device: > me@dukla:~> cat /proc/asound/cards > 0 [V8237 ? ? ? ? ?]: VIA8237 - VIA 8237 > ? ? ? ? ? ? ? ? ? ? ?VIA 8237 with ALC658D at 0xe000, irq 177 > 1 [PC300 ? ? ? ? ?]: USB-Audio - PC-300 > ? ? ? ? ? ? ? ? ? ? ?Roland PC-300 at usb-0000:00:10.2-2, full speed > > And yet I cannot see it as an input ALSA device: > me@dukla:~> aconnect -i -o > client 0: 'System' [type=kernel] > 0 'Timer ' > 1 'Announce ' > client 62: 'Midi Through' [type=kernel] > 0 'Midi Through Port-0' > client 128: 'FLUID Synth (10018)' [type=user] > 0 'Synth input port (10018:0)' > > I am running SuSE 10.0 x86_64 (kernel 2.6.13-15) which has ALSA > 1.0.9-23. My skills do not run to kernel compiles: the keyboard does > work fine under Windows and even > cat /dev/midi > shows some garbage at each key press. > > Any/all help or suggestions would be very welcome! > Thanks You can either: * Remove the module usb-midi, if you don't need it anymore. Or * Add one line at end of your file "/etc/hotplug/blacklist". To do it, open a terminal window, login as root and enter: # echo "usb-midi" >> /etc/hotplug/blacklist Next time you boot the computer, the module "usb-midi" won't be loaded and your keyboard controller will be driven by ALSA. There is a diagnostic script to debug ALSA problems here: http://alsa.opensrc.org/aadebug Perhaps you would like to run it, before and after, and tell us it this helps. Regards, Pedro
