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ALSA, PulseAudio, PipeWire - Development Considerations
Default Audio Volume
- 100% default audio volume
PipeWire bug reports
- Debian 12 on Virtualbox with Intel HD Audio will result in non-loading videos
- reports that AC97 works better than Intel HD.
- Sound is cleaner with pipewire from backports on virtualbox
Debian bug reports
QEMU / KVM bug reports
VirtualBox bug reports
- Choppy sound on Workstation - change VirtualBox Audio Settings to VirtualBox defaults - AC97 versus Intel HD reports that Intel HD works better than AC97 (Blocker to be reliable option due to debian specific issue with Intel HD Audio).
- https://www.virtualbox.org/ticket/20330
- https://www.virtualbox.org/ticket/20634
Kicksecure, security-misc bug reports
- https://forums.whonix.org/t/kicksecure-17-2-2-0-unreleased-version-sound-driver-issue/20379
-
security-misc|! 271
Impact of Host Operating System
None. Unspecific to Windows host versus Linux host.
Summary of PipeWire Sounds Issues inside VirtualBox
Intel HD Audio:
- plain Debian/Kicksecure/possibly Arch Linux + 2GB RAM: functional
- plain Debian/Kicksecure/Arch Linux + 4+GB RAM: broken
AC97:
- ac97 + Debian/Kicksecure + any GB = functional
pipewire-alsa
Error and Warnings
mod.rt: Can't find org.freedesktop.portal.Desktop. Is xdg-desktop-portal running?
pipewire[1578]: mod.rt: Can't find org.freedesktop.portal.Desktop. Is xdg-desktop-portal running? pipewire[1578]: mod.rt: found session bus but no portal
- Not a problem in Kicksecure 18 with LXQt.
- LXQt provides its own XDG desktop portal backend,
xdg-desktop-portal-lxqt, and uses other portal backends where necessary.
- LXQt provides its own XDG desktop portal backend,
- Prior to Kicksecure 18, out-of-date and retained for reference only:
- Non-Qubes Debian based issue only. Xfce issue only.
- Qubes Debian based does not have this issue.
- missing package:
xdg-desktop-portaland probably alsoxdg-desktop-portal-gtk - problem is that Xfce does not have its own XDG desktop portal implementation. Therefore the
xdg-desktop-portalsystemd user unit does not autostart by default. Not applicable to LXQt.- manual workaround: systemd --user start xdg-desktop-portal
xdg-desktop-portal-gtkis a good choice as per https://github.com/flatpak/xdg-desktop-portal/pull/1199- Xfce does not provide an XDG Desktop Portal by default.
- TODO research: how to implement this by default as a Linux distribution
- in Debian
trixieperhaps https://packages.debian.org/trixie/xdg-desktop-portal-xapp would work
- in Debian
- Fixed by
kicksecure-meta-packages|? 1
SPA handle 'api.libcamera.enum.manager' could not be loaded; is it installed?
https://forums.whonix.org/t/port-from-pulseaudio-to-pipewire-for-audio-support/16879/43
wireplumber[1883]: SPA handle 'api.libcamera.enum.manager' could not be loaded; is it installed? wireplumber[1883]: PipeWire's libcamera SPA missing or broken. libcamera not supported.
missing package: pipewire-libcamera
WARN IPAManager ipa_manager.cpp:154 No IPA found in '/usr/lib/x86_64-linux-gnu/libcamera'
WARN IPAManager ipa_manager.cpp:154 No IPA found in '/usr/lib/x86_64-linux-gnu/libcamera'
missing package: libcamera-ipa
wireplumber[1029]: Failed to set scheduler settings: Operation not permitted
wireplumber[1029]: Failed to set scheduler settings: Operation not permitted
- https://forums.whonix.org/t/port-from-pulseaudio-to-pipewire-for-audio-support/16879/44
- https://gitlab.freedesktop.org/pipewire/wireplumber/-/issues/255
alsa
alsactl[624]: alsa-lib main.c:1541:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
alsactl[624]: /usr/sbin/alsactl: set_control:1339: failed to obtain info for control #29 (No such file or directory)
(udev-worker)[541]: controlC0: Process '/usr/sbin/alsactl -E HOME=/run/alsa -E XDG_RUNTIME_DIR=/run/alsa/runtime restore 0' failed with exit code 99.
- Solution? No longer install
alsa-utilsby default. - https://forums.whonix.org/t/port-from-pulseaudio-to-pipewire-for-audio-support/16879/6
- https://forums.whonix.org/t/port-from-pulseaudio-to-pipewire-for-audio-support/16879/45
Debugging PipeWire
Run as user (non-root):
sudo journalctl -f
dbus-manager --session
systemctl --user restart wireplumber
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