31 Jan
2006
31 Jan
'06
3:05 p.m.
On Tuesday 31 January 2006 20:28, linux-audio-user-request(a)music.columbia.edu
wrote:
Was not so bad. No more undefines and get my UM1 usb and the ens1371 just
fine. snd=mu401 does not load with same error as in 2.6.12 kernels!
The audio plays through the ensonic just fine.
I used to be able to "cat" the midi from the UM1 cat /dev/midi1 but this did
not work.
Since I had no midi out, I could not try playing MIDI or "thru"ing the
keyboard using jackqtl to connect the UM1 to the mpu401.
So ...
1. Debian stock kernels are not built with alsa's core. I needed to roll my
own for this.
2. The mpu401 problem remains from 2.6.12.
Also a problem
in 2.6.14. I am not using udev or devfs but have
explicitely created /dev nodes (old fashioned way and far far too many
entries, but ... always worked before).
Newer kernels boot with many undefines. They seem to correspond to stuff
in the sound core modules. Do I now need to explicitely load these or
soundcore.ko on boot up (i.e. placing them in /etc/modules--somewhere
along the line, snd_seq_midi had to be placed there!). Anybody doing
this? (Guess it wouldn't hurt to try it.)
Easy enough -- didn't work. It is as if these modules are not exporting
their symbols correctly.
Made a kernel with alsa sound support compiled in! I also compiled in the
"generic" devices. Result: NO UNDEFINED. My three (a set ncards = 3) became
dummy, virmidi and the ensonic. The ensonic did not play, however, but the
alsa restore on bootup failed because of the 1st two. Kmixer settings are
restored but have no effect.
So I am trying to build it with just the alsa core compiled in and
hopefully the three cards will be the mpu401, usb-audio and ensonic loaded
as modules as before. Wish this did not take so long to try out :-