i got no surround-sound with my nb which running 11.04 x64
i only got sound on "front right" and "front left" i already tried
everything what i found in the Internet. setting a profile in sound settings will not change anything... in the alsamixer all channels are enabled and max volume.
about my hardware (what alsamixer shows)
Device: HDA Intel
Chip: Nvidia MCP77/78 HDMI
any ideas ?