I have an apparently uncommon problem with my 5.1 sound setup using Realtek ALC883 on Asus P5KR. Occurence: Linux Mint 12 KDE 64bit; Linux Mint Debian Mate (GNOME) 64bit Update Pack 4 (Update Pack 3 was working properly) Symptoms: No sound from LFE speaker. If the hardware profile (speakers setup) of audio device is changed during the playback, LFE comes up. However, when audio is stopped (no matter if it is Banshee or Totem) and started again, subwoofer is down. Pausing and playing works fine but selecting another track doesn't. I have no idea if it is pulse or alsa problem, but I would gladly provide more data if anyone would explain how to do so. Br, Hollow
