The stabilization of media-video/pipewire-0.3.30-r1 broke audio in firefox 78.11.0esr (the current stable version) on my system. Upgraded to pipewire-0.3.31 and firefox audio still didn't work. Downgrading to the earlier media-video/pipewire-0.3.22 restored audio functionality in firefox. Audio works fine in other applications I've tried. Only firefox seems to have problems with the recent pipewire versions. I don't have pulseaudio at all on my system; I'm using pipewire with the pipewire-alsa flag. Reproducible: Always Actual Results: The firefox error message is: [Child 5894, MediaDecoderStateMachine #1] WARNING: 7f1c315e9ef0 OpenCubeb() failed to init cubeb: file /var/tmp/portage/www-client/firefox-78.11.0/work/firefox-78.11.0/dom/media/AudioStream.cpp, line 331 [Child 5894, MediaDecoderStateMachine #1] WARNING: Decoder=7f1c32c87000 [OnMediaSinkAudioError]: file /var/tmp/portage/www-client/firefox-78.11.0/work/firefox-78.11.0/dom/media/MediaDecoderStateMachine.cpp, line 3891 emerge --info media-video/pipewire: Portage 3.0.20 (python 3.9.5-final-0, default/linux/amd64/17.1/desktop/plasma, gcc-10.3.0, glibc-2.33-r1, 5.10.49-gentoo-r1 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-5.10.49-gentoo-r1-x86_64-AMD_Ryzen_9_3950X_16-Core_Processor-with-glibc2.33 KiB Mem: 65795260 total, 59323108 free KiB Swap: 33554428 total, 33554428 free Timestamp of repository gentoo: Thu, 15 Jul 2021 08:15:01 +0000 Head commit of repository gentoo: 1bf9cfb8cb06d9e02602944aab4144513c6ef0ca sh bash 5.1_p8 ld GNU ld (Gentoo 2.35.2 p1) 2.35.2 app-shells/bash: 5.1_p8::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.32.1::gentoo dev-lang/python: 2.7.18_p10::gentoo, 3.8.10_p2::gentoo, 3.9.5_p2::gentoo dev-lang/rust: 1.52.1::gentoo dev-util/cmake: 3.18.5::gentoo sys-apps/baselayout: 2.7::gentoo sys-apps/openrc: 0.42.1-r1::gentoo sys-apps/sandbox: 2.24::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r5::gentoo sys-devel/automake: 1.16.3-r1::gentoo sys-devel/binutils: 2.35.2::gentoo sys-devel/gcc: 10.3.0-r1::gentoo sys-devel/gcc-config: 2.4::gentoo sys-devel/libtool: 2.4.6-r6::gentoo sys-devel/make: 4.3::gentoo sys-kernel/linux-headers: 5.10::gentoo (virtual/os-headers) sys-libs/glibc: 2.33-r1::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: rsync sync-uri: rsync://rsync.namerica.gentoo.org/gentoo-portage/ priority: -1000 sync-rsync-verify-metamanifest: yes sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 sync-rsync-verify-jobs: 1 local location: /usr/local/portage masters: gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.4/ext-active/ /etc/php/cgi-php7.4/ext-active/ /etc/php/cli-php7.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--jobs=8 --load-average=32" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-march=native -O2 -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs cgroup collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-march=native -O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en en_US" MAKEOPTS="--jobs=32 --load-average=35" PKGDIR="/var/cache/binpkgs" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac acl acpi activities alsa amd64 apache2 bluetooth branding bzip2 cairo cdda cdr cli colord crypt cups curl dbus declarative doc dri dts dvd dvdr elogind emboss encode examples exif flac fontconfig fortran gcj gd gdbm gif gtk gtk-doc gui handbook iconv icu ipv6 jack java jbig jpeg kde kipi kpathsea kwallet lcms libglvnd libnotify libtirpc lzma mad mbox mng mp3 mp4 mpeg multilib ncurses nls nptl odbc ogg openexr opengl openmp pam pango pcre pdf phonon plasma png policykit postgres ppds qml qt5 readline screencast sdl seccomp semantic-desktop source spell split-usr ssl startup-notification svg t1lib tcpd threads tiff truetype udev udisks unicode upower usb vim-syntax vorbis webp widgets wxwidgets x264 xattr xcb xinerama xml xpm xv xvid zlib" ABI_X86="64 32" ADA_TARGET="gnat_2018" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_core authn_dbd authn_dbm authn_default authn_file authz_core authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgid dav dav_fs dav_lock dbd deflate dir disk_cache env expires ext_filter file_cache filter headers http2 ident imagemap include info lbmethod_byrequests log_config log_forensic logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http proxy_http2 rewrite setenvif slotmem_shm socache_shmcb speling status unique_id unixd userdir usertrack vhost_alias" APACHE2_MPMS="worker" CALLIGRA_FEATURES="karbon sheets words" CAMERAS="canon" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput wacom joystick" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="nlpsolver wiki-publisher" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" RUBY_TARGETS="ruby26" SANE_BACKENDS="epson2" USERLAND="GNU" VIDEO_CARDS="amdgpu radeonsi fbdev vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RUSTFLAGS ================================================================= Package Settings ================================================================= media-video/pipewire-0.3.31::gentoo was built with the following: USE="bluetooth doc extra gstreamer jack-client pipewire-alsa -jack-sdk -systemd -test -v4l" ABI_X86="32 (64) (-x32)" FEATURES="usersync news binpkg-logs xattr merge-sync distlocks pid-sandbox protect-owned userpriv parallel-install multilib-strict collision-protect cgroup assume-digests unmerge-orphans qa-unresolved-soname-deps parallel-fetch strict sfperms binpkg-docompress ebuild-locks sandbox unknown-features-warn ipc-sandbox binpkg-dostrip fixlafiles config-protect-if-modified userfetch unmerge-logs usersandbox network-sandbox preserve-libs"
I found the issue. I'm running firefox logged in as another (low-privileged) user from a KDE konsole. Audio doesn't work for any application run by any user other than my primary desktop login user. Apparently the pipewire configuration has changed recently and I've got some research to do. Closed as invalid.
