[ALSA - driver 0002219]: snd-mpu401 don't load

bugtrack
2006-06-22T01:19:16Z

Last Modified: 06-22-2006 03:19 CEST
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Summary: snd-mpu401 don't load
Description:
I have a Aopen MX63LE board with onboard sound managed by snd-via82xx
driver. It loads all necesary modules, includind snd-mpu401-uart, but no
snd-mpu401
The audio part of the driver works perfectly, but the midi port doesn't
work.

In BIOS i can set (and see) the mpu401 port (0x300 or 0x330) but there is
not a MPU401 IRQ setting in bios. When i tried to manually load snd-mpu401
(setting the port accordingly to BIOS) it doesnt work. I don't know the
mpu401 irq setting but i tryed them all. None of them worked. The driver
says "device not found".

Under windows xp the port works perfectly, so the hardware is ok. Anyway
under windows xp, i use a "system inspector" to monitor ioports and irq
usage, and i didnt see any irq assigned for mpu401 port, and the port
(0x330) wasn't occupied neither.

any idea?
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----------------------------------------------------------------------
El Santo - 06-21-06 18:00
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I tryed with and without "pci=routeirq" and "lapic".
I also set mpu_port parameter for snd-via82xx module.

The result is the same: no midi port

----------------------------------------------------------------------
Raymond - 06-22-06 03:19
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If you are using ALSA-1.0.11, snd-seq-dummy (midi through) should be at
port 14.

aplaymidi -l
Port Client name Port name
14:0 Midi Through Midi Through Port-0

Issue History
Date Modified Username Field Change
======================================================================
06-18-06 17:41 El Santo New Issue
06-18-06 17:41 El Santo Distribution => Debian etch
(2006-06-18)
06-18-06 17:41 El Santo Kernel Version => 2.6.15-1-686
06-19-06 03:45 Raymond Note Added: 0010305
06-20-06 19:49 tiwai Note Added: 0010349
06-20-06 23:30 El Santo Note Added: 0010357
06-20-06 23:39 rlrevell Note Added: 0010359
06-20-06 23:54 El Santo Note Added: 0010362
06-21-06 00:00 rlrevell Note Added: 0010363
06-21-06 00:04 rlrevell Note Added: 0010364
06-21-06 00:12 El Santo Note Added: 0010365
06-21-06 00:18 rlrevell Note Added: 0010366
06-21-06 00:33 El Santo File Added: dmesg.log
06-21-06 00:36 El Santo Note Added: 0010367
06-21-06 00:52 rlrevell Note Added: 0010369
06-21-06 00:56 rlrevell Note Added: 0010370
06-21-06 02:02 rlrevell Note Added: 0010374
06-21-06 04:51 Raymond Note Added: 0010379
06-21-06 18:00 El Santo Note Added: 0010400
06-22-06 03:19 Raymond Note Added: 0010412
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