Wow, I have just installed libflashsupport package and it looks like it is working fine now.
So it is related to flash and pulseaudio after all. I got the idea from the ubuntu french forum where users are getting the same bug: http://forum.ubuntu-fr.org/viewtopic.php?id=220138 -- Rhythmbox jams after other apps use ALSA https://bugs.launchpad.net/bugs/239757 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