Since upgrade to Ubuntu 6.06 (Dapper Drake) on my Amilo Pro V2000D, the sound doesn’t block anymore. It’s nice that all the applications can use the sound at the same time, even after switching the user — the other session is able to use the sound as well.
There is one thing that got worse after the upgrade: the sound skips sometimes. While listening to the musisc, it sometimes suddenly skips few seconds of the music. This is annoying, because then the music misses the beat and it’s destroying the pleasure of listening.
I noticed that it always (I think…) happens in the same moment: about 3 minutes 40 seconds of the song.
UPDATE: I think it’s more like 3:38. And it’s not ALSA, it Rhythmbox 0.9.5 that does that.