15 Nov
2005
15 Nov
'05
6:04 p.m.
On Tue, 15 Nov 2005 at 21:00 +0100, Christoph Eckert wrote:
Hi,
No, but I tried aseqview. I'll try one of those next time.
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? 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.
I think it is probably *plug related. I used to think that something in
the usb drivers was getting in a wierd state, but this last time being
able to fix it without a reboot is making me doubt that. Or it could
have been a coincidental unrelated problem.
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 :) .
I'll double-check. Plugging and unplugging with snd-usb-audio works
great most of the time.
--
Hans Fugal ; http://hans.fugal.net
There's nothing remarkable about it. All one has to do is hit the
right keys at the right time and the instrument plays itself.
-- Johann Sebastian Bach