I updated the operating system running on my machine to 22.04 Jaunty. This update brings the system over to pipe-wire. After running certain programs that utilize alsa, the audio on my system becomes intermittent and runs only one application's audio at a time. Resetting the pipe-wire services and forcing alsa to reload its modules does not reliably mitigate the issue.

This is the url generated by alsa-info. http://alsa-project.org/db/?f=4d643a3153ffabd5c72313e8ffa3c9f393e676ef

On a power cycle, the audio seems to work fine, but as soon as I run the problematic program I get the output:

ALSA lib pcm_dmix.c:1032:(snd_pcm_dmix_open) unable to open slave

If the program's audio is successful, and it opens the slave. Audio to other applications is upset.

sudo alsa force-reload Unloading ALSA sound driver modules: snd-seq-dummy snd-seq-midi snd-seq-midi-event snd-hda-codec-realtek snd-hda-codec-generic snd-hda-codec-hdmi snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hrtimer snd-usb-audio snd-usbmidi-lib snd-hwdep snd-rawmidi snd-seq snd-pcm snd-seq-device snd-timer (failed: modules still loaded: snd-hda-codec-realtek snd-hda-codec-generic snd-hda-codec-hdmi snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hrtimer snd-usb-audio snd-usbmidi-lib snd-hwdep snd-rawmidi snd-seq snd-pcm snd-seq-device snd-timer). Loading ALSA sound driver modules: snd-seq-dummy snd-seq-midi snd-seq-midi-event snd-hda-codec-realtek snd-hda-codec-generic snd-hda-codec-hdmi snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hrtimer snd-usb-audio snd-usbmidi-lib snd-hwdep snd-rawmidi snd-seq snd-pcm snd-seq-device snd-timer.

MK