PipeWire on オブライエンの日誌

PipeWire on オブライエンの日誌https://america.github.io/en/tags/pipewire/Recent content in PipeWire on オブライエンの日誌Hugoen-USSun, 04 Oct 2026 00:00:00 +0900pavucontrol wouldn't start. Chasing it led from a WirePlumber Lua bug down to a USB protocol errorhttps://america.github.io/en/post/2026-10-04-pavucontrol-wireplumber-usb-debugging/Sun, 04 Oct 2026 00:00:00 +0900https://america.github.io/en/post/2026-10-04-pavucontrol-wireplumber-usb-debugging/pavucontrol (PulseAudio's volume control app) refused to open, throwing 'pa_context_get_card_info_by_index() failed: Invalid argument'. A record of digging through journalctl, WirePlumber's source (alsa.lua), and down into the kernel's USB logs.