Mikhail Morfikov [2015-05-17 12:46 +0200]: > As you can read, for instance here > ( http://enotty.pipebreaker.pl/2012/05/23/linux-automatic-user-acl-management/ > ), logind, which is a part of systemd, can set permissions to some > devices for user sessions. There's also a vid showing how this kind of > behavior works in practice > ( https://www.youtube.com/watch?v=qcD4Qr5ldbI ). In short, if you > start, let's say, amarok, and you play some song, you will hear the > sound till you switch to another user or TTY where you have only the > login prompt. That's because the active session became inactive.
If you log into the TTY, the sound will continue, as you will again be in a foreground session, right? > I know that you can simply add a user (or users) to a specific group, > in this case "audio", and that will 'fix' this issue Personally I wouldn't consider this a "fix"; it's a very wrong thing to do for environments with multiple users. But indeed using static group memberships will achieve this "first user to grab a device will keep owning it" behaviour. Martin -- Martin Pitt | http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)
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