Not so shure.
In System Settings - Phonon - Audio Hardware Setup
I set the UA1G external USB Audio soundcard, Apply, Test left and right speaker works nicely (also Amarok always works on the external USB audio).
The UA1G is also set as preferred device everywhere.
Then I close Systems Settings, reopen it, and see that the "Internal Soundcard" is selected again.
Something is resetting the sound card to "internal" after closing the Systems Settings of Phonon.
- KMix is hanging on startup, showing up as icon on the Task Bar only and then dissappearing.
- Sometimes Mint KDE is popping up a message box, asking me if it should to permanently forgett about the UA1G external usb audio device,
because it pretends it was removed, which is not the case. This also happens after wakup from suspend to RAM.
- Under SUSE 11.3 KDE the very same external USB sound card has worked without problems, also with Firefox/FlashPlayer.