安装 pulseaudio 还是没有声音，我按照这个办法解决了：
What did work for me :
Pulseaudio configuration's files in
~/.config/pulse
were like
589187e8155f40638e8344f0f9b0ab3c-*
Therefore I deleted them then I did
cp /etc/pulse/* ~/.config/pulse/
It works !
备注：
用 journalctl 查看，然后 google 问题
或者从 pluseaudio 切换到 pipewire
sudo pacman -S pipewire-pulse pipewire-alsa pipewire-jack