pygame.midi not accessing devices properly on linux

[JiffyRob]

Environment:

• Operating system: Linux(Debian 11), using ALSA and Pipewire
• Python version: 3.9 (I might have tested on 3.11 as well, but I don't remember)
• SDL version: Whatever the PyPI builds of my pygame versions shipped with
• PyGame version: Tested on 1.9.6, 2.0.0, 2.1.0, 2.1.1, 2.1.2, 2.1.3-CE (pygame up through 2.1.2 worked, CE did not) (Also the versions of original pygame were tested, 2.2.0 and 2.3.0, and neither of them worked either)

Current behavior:

pygame.midi.get_count() will always return 0, even if I have multiple virtual and physical devices connected.

Expected behavior:

No errors and it sees my devices. This is how the versions that "worked" behaved.

Test code

import pygame.midi
pygame.midi.init() # causes warning
print(pygame.midi.get_count())

Stack trace/error output/other error logs

ALSA lib conf.c:4555:
(snd_config_update_r) Cannot access file /usr/local/share/alsa/alsa.conf
ALSO lib seq.c:935:
(snd_seq_open_noupdate) Unknown SEQ default

[Starbuck5]

(pygame up through 2.1.2 worked, CE did not)

... Because pygame-ce didn't exist in those versions?

So this broke between pygame 2.1.2 and pygame 2.1.3? Well that narrows it down to a 14 month period... Not exactly ideal. What about the pygame 2.1.3 dev releases? dev2,dev4,dev6,dev8.

[PurityLake]

I have some time today, I can look into this

[PurityLake]

@JiffyRob

What version of Alsa are you using? Please give me the result of cat /proc/asound/version

[PurityLake]

ALso since you are running Ubuntu you should reinstall your audio libraries like so:

sudo apt-get install --reinstall libasound2 libasound2-data libasound2-plugins

It seems you alsa.conf is missing and this should fix it, restart your machine and try pygame-ce again.

[JiffyRob]

@PurityLake Thanks for the work, I'll look into that as soon as I have time.
@Starbuck5 maybe I was unclear - No versions of pygame-ce worked, but pygame versions up to that point did. At any rate, I'll get to that as well when I have time. Finals are coming up, so it might be a little bit.

[JiffyRob]

@PurityLake the given apt command did not fix the problem. Output of cat /proc/asound/version is Advanced Linux Sound Architecture Driver Version k5.10.0-22-rt-amd64

[JiffyRob]

@Starbuck5 I only have dev6 and dev8 available for my current version of python (3.9). Both of those showed the bug. I'll try a couple of other versions floating around on my system and see if those will get closer in.

[Starbuck5]

I looked into it and the binary releases of pygame 2.1.3.dev2 and dev4 have been deleted off of pypi. You can still get the releases by navigating to the pygame repo's releases page and downloading the artifacts directly from there.

[PurityLake]

@JiffyRob may I ask what midi device you have plugged in? Do you have the correct drivers installed for it? I am seeing no real issues in the pygame code for it as it basically outsources the code to portmidi. Unfortunately I don't have a midi keyboard with me for the next while.

Currently looking through some of the code from portmidi to see what some of these issues might be.

[PurityLake]

Also what could you post you alsa.conf? Use cat /usr/share/alsa/alsa.conf

I have a feeling that for some reason ubuntu did not add the file again.

[JiffyRob]

@PurityLake Sorry once again for the late reply, the output is very long so I will only post the top:

#
#  ALSA library configuration file
#

# pre-load the configuration files

@hooks [
        {
                func load
                files [

At any rate, there is stuff in it, so the file is there.
Also for devices I have a Midi Thru on mmy computer that pygame sees when it doesn't err out, as well as a Nektar LX49+ connected via USB. I presume I have the correct drivers set up for it because I have used it with other programs like LMMS.