SUMMARY I'm unsure when this occurred, but sound was working fine under my NEON setup until recently (I suspect an upgrade broke something). QT: 5.14.10 Graphics Platform (both Wayland and X11 have the same issue). The sound devices still show up under the sound options HDIM/ DisplayPort 1 Output (sof-hda-dsp HDMI / DisplayPort 1 Output) Speaker (sof-hda-dsp Speaker + Headphones) This is the same as when working. Selecting either of these output devices produces absolutely nothing. A bluetooth speaker does work. Input devices seem to be functioning OK. the log has a lot of these 22 11:17:41 peter-xps157590 plasmashell[3254]: kpipewire_logging: Window not available PipeWireSourceItem_QML_958(0x55936d49e3e0, parent=0x55936d3dfed0, geometry=0,0 270x127) Aug 22 11:17:41 peter-xps157590 plasmashell[3254]: message repeated 21 times: [ kpipewire_logging: Window not available PipeWireSourceItem_QML_958(0x55936d49e3e0, parent=0x55936d3dfed0, geometry=0,0 270x127)] Aug 23 10:57:14 peter-xps157590 plasmashell[2865]: kpipewire_logging: Window not available PipeWireSourceItem_QML_959(0x5642f3973d90, parent=0x5642f2db86c0, geometry=0,0 154x69) I can find no mention of pipewire anything in systemctl. Sound was working recently on both internal speaker on the laptop and HDMI. SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.14.10 ADDITIONAL INFORMATION sudo apt list | grep pipewire WARNING: apt does not have a stable CLI interface. Use with caution in scripts. gstreamer1.0-pipewire/jammy-updates,now 0.3.48-1ubuntu3 amd64 [installed,automatic] gstreamer1.0-pipewire/jammy-updates 0.3.48-1ubuntu3 i386 libkpipewire-dev/jammy 5.27.7-0xneon+22.04+jammy+release+build19 amd64 libkpipewire5-dbgsym/jammy 5.27.7-0xneon+22.04+jammy+release+build19 amd64 libkpipewire5/jammy,now 5.27.7-0xneon+22.04+jammy+release+build19 amd64 [installed,automatic] libkpipewirerecord5-dbgsym/jammy 5.27.7-0xneon+22.04+jammy+release+build19 amd64 libkpipewirerecord5/jammy,now 5.27.7-0xneon+22.04+jammy+release+build19 amd64 [installed,automatic] libpipewire-0.3-0/jammy-updates,now 0.3.48-1ubuntu3 amd64 [installed,automatic] libpipewire-0.3-0/jammy-updates 0.3.48-1ubuntu3 i386 libpipewire-0.3-common/jammy-updates,jammy-updates,now 0.3.48-1ubuntu3 all [installed,automatic] libpipewire-0.3-dev/jammy-updates 0.3.48-1ubuntu3 amd64 libpipewire-0.3-dev/jammy-updates 0.3.48-1ubuntu3 i386 libpipewire-0.3-modules/jammy-updates,now 0.3.48-1ubuntu3 amd64 [installed,automatic] libpipewire-0.3-modules/jammy-updates 0.3.48-1ubuntu3 i386 pipewire-audio-client-libraries/jammy-updates 0.3.48-1ubuntu3 amd64 pipewire-audio-client-libraries/jammy-updates 0.3.48-1ubuntu3 i386 pipewire-bin/jammy-updates,now 0.3.48-1ubuntu3 amd64 [installed,automatic] pipewire-bin/jammy-updates 0.3.48-1ubuntu3 i386 pipewire-doc/jammy-updates,jammy-updates 0.3.48-1ubuntu3 all pipewire-media-session/jammy,now 0.4.1-2ubuntu1 amd64 [installed,automatic] pipewire-pulse/jammy-updates 0.3.48-1ubuntu3 amd64 pipewire-pulse/jammy-updates 0.3.48-1ubuntu3 i386 pipewire-tests/jammy-updates 0.3.48-1ubuntu3 amd64 pipewire-tests/jammy-updates 0.3.48-1ubuntu3 i386 pipewire/jammy-updates,now 0.3.48-1ubuntu3 amd64 [installed,automatic] pipewire/jammy-updates 0.3.48-1ubuntu3 i386 qml-module-org-kde-pipewire-dbgsym/jammy 5.27.7-0xneon+22.04+jammy+release+build19 amd64 qml-module-org-kde-pipewire/jammy,now 5.27.7-0xneon+22.04+jammy+release+build19 amd64 [installed,automatic]