15 Nov
2005
15 Nov
'05
4 p.m.
Hi,
Not sure if I'm seeing the same problem, but it
sounds like it might
be. My midi controller (keystation) works fine for day after day of
minimal use, and then one day I'll go to use it and it doesn't work.
qjackctl sees it and can establish connections, dmesg reports nothing
unusual. It just doesn't seem to be generating any events. I unplug
its usb and it disappears from qjackctl. I plug it back in and it
reappears, but still doesn't work. So I unplug the power and plug it
back in, same thing. So I unload snd-usb-audio and unplug the usb and
plug it back in and the same thing. Finally I give up and reboot.
did you try amidimon in a shell window (amidimon --ports all) or
kmidimon to check if there realy is no MIDI coming in?
Yesterday after rebooting, it still didn't work,
so I unplugged all
my USB devices (keyboard, mouse, scanner, keystation) and plugged the
keystation back in, and then it worked.
Just to clearify: I loose my keyboard which is a notebook keyboard
connected internally via psaux.
In your case, maybe it's a problem of coldplug vs. hotplug. I'd try to
unplug the devices during boot time and plug it in after you logged in.
Furthermore, ensure that in your kernel config, drivers, usb you have
*disabled* usb-midi and usb-audio. Both are OSS and conflict with the
ALSA snd_usb_audio which handles four USB devices perfectly on my
machine (except for the keyboard loss, of course :) .
Best regards
ce