JACK Patchbay is suddenly completely empty

[rasmusq]

All of a sudden, the patchbay is completely blank on both my laptop and my desktop PC. It happened right after an update on arch 2-4 days ago. I am currently on version 0.14.3. This holds true for both the -git version and the AUR version. Current Kernel: Linux rasmusq-desktop 6.8.8-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 28 Apr 2024 15:59:47 +0000 x86_64 GNU/Linux

This is the terminal output:

% raysession      
qt.qpa.qgnomeplatform.theme: The desktop style for QtQuick Controls 2 applications is not available on the system (qqc2-desktop-style). The application may look broken.
qt.qpa.qgnomeplatform: Could not find color scheme  ""
[ray-daemon]GUI connected at osc.udp://rasmusq-desktop:19786/
[ray-daemon]URL : osc.udp://192.168.1.204:16187/
[ray-daemon]      osc.udp://rasmusq-desktop:16187/
[ray-daemon]ROOT: /home/rasmusq/Ray Sessions
[ray-daemon]Attempting to open /home/rasmusq/Ray Sessions/Default
marrouubma
[ray-daemon]Commanding smart clients to switch
QObject::connect: No such signal QPlatformNativeInterface::systemTrayWindowChanged(QScreen*)
[ray-daemon]Process has pid: 393084
[ray-daemon]The client "JACK Connections" at "osc.udp://192.168.1.204:19788/" informs us it's ready to receive commands.
[ray-daemon]Telling all clients that session is loaded...
[ray-daemon]Telling client JACK Connections that session is loaded.
[ray-daemon]Loaded
[ray-daemon]Done
[ray-daemon]patch sends clean
qt.qpa.qgnomeplatform: Could not find color scheme  ""
qt.qpa.qgnomeplatform: Could not find color scheme  ""

The patchbay in RaySession: The patchbay in Carla:

[bbeckoo]

I investigated this a bit and it's most probably alsa-python. There are some open issues. It segfaults on python 3.12 https://github.com/alsa-project/alsa-python/issues/9

[Houston4444]

Ok, I don't see anything in the logs that can help me to find what happens. I'll try to update my manjaro and see how it behaves (unfortunately manjaro update is verrrrrrrrry long, especially because I don't use it daily).

I suspect that the same happens for Patchance.

[bbeckoo]

This solves the issue: https://github.com/alsa-project/alsa-python/pull/10

[Houston4444]

Nice news. Thanks for the investigation!

[waicool20]

Make a quick PKGBUILD for impatient arch users like me

_name=pyalsa
pkgname=python-pyalsa
pkgver=1.2.7
pkgrel=6
pkgdesc="Python binding for the ALSA library"
arch=(x86_64)
url="https://www.alsa-project.org"
license=(LGPL-2.1-or-later)
depends=(
  alsa-lib
  glibc
  python
)
makedepends=(
  python-build
  python-installer
  python-setuptools
  python-wheel
)
source=(git+https://github.com/FrancescoCeruti/alsa-python.git)
sha512sums=('SKIP')
validpgpkeys=(F04DF50737AC1A884C4B3D718380596DA6E59C91)  # ALSA Release Team (Package Signing Key v1) <release@alsa-project.org>

build() {
  cd alsa-python
  python -m build --wheel --no-isolation
}

package() {
  cd alsa-python
  python -m installer --destdir="$pkgdir" dist/*.whl
}

[SilenceFox]

Make a quick PKGBUILD for impatient arch users like me

_name=pyalsa
pkgname=python-pyalsa
pkgver=1.2.7
pkgrel=6
pkgdesc="Python binding for the ALSA library"
arch=(x86_64)
url="https://www.alsa-project.org"
license=(LGPL-2.1-or-later)
depends=(
  alsa-lib
  glibc
  python
)
makedepends=(
  python-build
  python-installer
  python-setuptools
  python-wheel
)
source=(git+https://github.com/FrancescoCeruti/alsa-python.git)
sha512sums=('SKIP')
validpgpkeys=(F04DF50737AC1A884C4B3D718380596DA6E59C91)  # ALSA Release Team (Package Signing Key v1) <release@alsa-project.org>

build() {
  cd alsa-python
  python -m build --wheel --no-isolation
}

package() {
  cd alsa-python
  python -m installer --destdir="$pkgdir" dist/*.whl
}

First of all, thank you ! Here's some instructions in case anyone stumbles here

First clone the fork: git clone https://github.com/FrancescoCeruti/alsa-python then cd into it: cd alsa-python then make a new file called PKGBUILD: touch PKGBUILD Paste the above inside the PKGBUILD file and run the following makepkg -si

[bbeckoo]

FIXED: https://github.com/alsa-project/alsa-python/releases/tag/v1.2.12