Arch Linux

Maesto

Member

Registered: 2014-06-23

Posts: 6

Midiman 2x2 not working under alsa aplaymidi / amidi

Well until now I was able to fix problems with the MidiMan 2x2 Anniversary Edition of mine. As soon as they work it's great. But in between you wan't to throw it out the window. So annyways im at the end of my linux foo. Arch senseis please help me!

How to reproduce:
Install "midisport-firmware" from AUR so that the Device gets it's firmware it needs.
Plug in the MidiMan 2x2.

Expected behavior:
aplaymidi -l
should print the ports of the Midi Man.

What happens:
aplaymidi -l
Doesn't print the Ports:

 [maesto@GlaDOS ~]$ aplaymidi -l
 Port    Client name                      Port name
 14:0    Midi Through                     Midi Through Port-0

But amidi on the otherhand does print what I would expect.

[maesto@GlaDOS ~]$ amidi -l
Dir Device    Name
IO  hw:1,0,0  MIDISPORT 2x2 Anniv MIDI 1
IO  hw:1,0,1  MIDISPORT 2x2 Anniv MIDI 2

Further Info:

ich-glaub-es-hackt.de/alsa-info.txt

Thanks in advance!

stri

Member

Registered: 2014-06-09

Posts: 75

Re: Midiman 2x2 not working under alsa aplaymidi / amidi

It seems there is a problem with the kernel:

https://bugs.archlinux.org/task/44286

When I boot linux-lts 3.14.37-1, it works as expected. If you want to install linux-lts;

https://wiki.archlinux.org/index.php/En … ts_package

I can recommend doing this; almost every time my audio stops working, switching to lts fixes it. Then I wait for the next default kernel update and switch back. Usually, the problem is gone.

Maesto

Member

Registered: 2014-06-23

Posts: 6

Re: Midiman 2x2 not working under alsa aplaymidi / amidi

I guess thats it. Well guess I will wait for upstream to update then. Thanks.

Maesto

Member

Registered: 2014-06-23

Posts: 6

Re: Midiman 2x2 not working under alsa aplaymidi / amidi

For annyone finding this:

manually loading snd_seq_midi seems to solve the problem. (modprobe)

Depending at wich time you are reading this updating may also help.