@Daniel: the background here is that we had those exact problems in KDE 4.0 and could trace them down to the phonon backend, that's the first reason to check.
I understand that the issue is not "keeps audio stack busy" but "doesn't suspend audio device (while this should happen under normal circumstances". This might have to do with the behaviour of knotify4 (which I know next to nothing about), but you could ask Olivier Goffart who's maintaining knotify and should be able to point you to possible causes. -- "an audio device is active 100.0% procent of the time" in KDE according to powertop https://bugs.launchpad.net/bugs/521424 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs