[Ubuntu | MIDI] PortAudio options are empty and application crashes

PabloRochela

• Jan 25, 2020 - 19:20

Reported version

3.3

Type

Functional

Frequency

Many

Severity

S3 - Major

Reproducibility

Always

Status

active

Regression

Workaround

Yes

Project

MuseScore

Hi. MuseScore doesn't recognize my MIDI keyboard (Roland JV-50) because the PortAudio options are empty.

When I select PortAudio and press OK button, the application crashes.

OS: Ubuntu Core 18 (Ubuntu 19.10).
Arch.: x86_64.
MuseScore version (64-bit): 3.3.4.
Revision: 7684abe.

I've test the same MIDI keyboard with the same USB device (UM-2G MIDI) on a Windows 10 virtual machine and MuseScore recognizes it, I can use it.

Thanks.

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Comments

[DELETED] 1464

• Mar 14, 2020 - 17:08

Can confirm, I am also seeing this exact issue (with a Kawai keyboard). When run in a terminal, the failing log line is:

mscore: src/hostapi/alsa/pa_linux_alsa.c:1454: BuildDeviceList: Assertion `devIdx &lt; numDeviceNames' failed.

I can successfully see data coming in from the keyboard by using amidi, so Ubuntu's sound stack is detecting it correctly.

eullerborges

• Apr 1, 2020 - 00:30

I'm also facing the same issue with an Yamaha P-45.
I'm running Ubuntu 19.10.

namemartin

• Apr 2, 2020 - 22:33

Same problem here! Waiting for solucions please!

Nicholas Coppock

• Apr 9, 2020 - 22:48

Myself as well! Unsure of how to proceed. Ubuntu 18.04.4 LTS here.

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Vendetex

• May 12, 2020 - 04:24

I am experiencing the same issue here with my Roland FP-90 while running Ubuntu 20.04.

jclymer

• May 26, 2020 - 00:26

Workaround

⇒

Yes

I have the same problem. No MIDI input and selecting PortAudio crashes the program. I have gotten it to work using this command line in terminal:

    musescore3 -a alsa

Not sure why this works. Alsa is not selected in the Preferences, Pulse Audio still is. In my attempt to get it to work, I tried reloading PortAudio and Alsa, but not sure I accomplished anything, since I am not an expert in Linux.

PapyPiano

• Jul 20, 2020 - 22:26

still the same problem on ubuntu 20.04 (musescore crash when portaudio is selected), impossible to use a midi keyboard ! (may be with jackd ?)
on the other hand no problem with 18.04 .

Filipe de Moraes Paiva

• Feb 5, 2023 - 14:27

Regression	No	⇒	Yes
Workaround	Yes	⇒	No

I have the same problem with Musescore 3.6.3: when I select PortAudio, Musescore crashes;
Only PulseAudio makes sound and the I've got no input from the midi keyboard.
On the other hand, all sounds and midi inputs work fine with Musescore 3.2.3.

Jojo-Schmitz

• Feb 5, 2023 - 17:16

Regression	Yes	⇒	No
Workaround	No	⇒	Yes

Regressiion vs.whar? And why would that workaround not work for you?
Anyway, if you don't have this issue with 3.2.3, it'd be a different issue.