Eu fiz uma atualização ontem à noite e agora, após a reinicialização, não tenho mais o som funcionando.
Aqui está o seguinte erro no syslog:
Nov 24 07:47:40 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data.
Nov 24 07:48:30 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: message repeated 22 times: [ W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data.]
Nov 24 07:48:30 pascal-XPS-15-9560 org.gnome.Shell.desktop[2883]: ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Access denied
Nov 24 07:48:35 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data.
Nov 24 07:48:35 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data.
Isso é o que o journalctl -u snap.pulseaudio.pulseaudio.service diz:
Nov 24 07:46:16 pascal-XPS-15-9560 systemd[1]: Started Service for snap application pulseaudio.pulseaudio.
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export LD_LIBRARY_PATH=/var/lib/snapd/lib/gl:/var/lib/snapd/void:/snap/pulseaudio/9/usr/lib:/snap/pulseaudio/9/usr/lib/x86_64-linux-gnu::/s
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export PULSE_STATE_PATH=/var/snap/pulseaudio/9/state
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export ALSA_CONFIG_UCM=/snap/pulseaudio/9/usr/share/alsa/ucm
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export ALSA_CONFIG_TPLG=/snap/pulseaudio/9/usr/share/alsa/topology
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export ALSA_CONFIG_PATH=/snap/pulseaudio/9/usr/share/alsa/alsa.conf
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + export ALSA_MIXER_SIMPLE=/snap/pulseaudio/9/usr/share/alsa/smixer.conf
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + mkdir -p /var/snap/pulseaudio/9/state
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + EXTRA_ARGS=
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + [ -e /var/snap/pulseaudio/9/config/debug ]
Nov 24 07:46:16 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: + /snap/pulseaudio/9/usr/bin/pulseaudio --exit-idle-time=-1 --disallow-exit=yes --system -F /snap/pulseaudio/9/etc/pulse/default.pa -p /snap/
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] main.c: Running in system mode, but --disallow-module-loading not set.
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: N: [pulseaudio] main.c: Running in system mode, forcibly disabling SHM mode.
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] main.c: Home directory of user 'root' is not '/var/run/pulse', ignoring.
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] caps.c: Normally all extra capabilities would be dropped now, but that's impossible because PulseAudio was built without capa
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] main.c: OK, so you are running PA in system mode. Please note that you most likely shouldn't be doing that.
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] main.c: If you do it nonetheless then it's your own fault if things don't work as expected.
Nov 24 07:46:17 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] main.c: Please read http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/ for an
Nov 24 07:46:18 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] authkey.c: Failed to open cookie file '/var/run/pulse/.config/pulse/cookie': No such file or directory
Nov 24 07:46:18 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] authkey.c: Failed to load authentication key '/var/run/pulse/.config/pulse/cookie': No such file or directory
Nov 24 07:46:18 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] authkey.c: Failed to open cookie file '/var/run/pulse/.pulse-cookie': No such file or directory
Nov 24 07:46:18 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] authkey.c: Failed to load authentication key '/var/run/pulse/.pulse-cookie': No such file or directory
Nov 24 07:46:29 pascal-XPS-15-9560 pulseaudio.pulseaudio[2011]: W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data.
Qualquer ajuda aprecia. Este é meu computador de trabalho e ser remoto torna impossível participar de nossas reuniões diárias.