No alsa sound in FF 69 about apulse

[i-rinat]

[apulse] [error] do_connect_pcm: can't get initial hw parameters for playback device "default". Error code 1 (Operation not permitted)

Recently I found out that on my machine files in /dev/snd/ are managed by some daemon. Access control lists (ACLs) are added and removed dynamically. So when I switch from graphical interface to a kernel's virtual terminal (Ctrl-Alt-F2, for example), I see that access rights are retracted from files in /dev/snd/. Subsequently, audio playback stops. Previously, ConsoleKit managed those dynamic permissions. Probably now they are managed by systemd-logind or some other equivalent.

From error message, I guess something like that happens on your machine too. If that's the case, you need somehow persuade the demon that changes permissions to stop.

ACLs can be viewed by calling getfacl /dev/snd/* from a shell session. ACLs are stored as extended attributes, so getfattr -d -m - /dev/snd/* should work too, but its reports are not human-readable.