On Thu, 2011-09-29 at 16:46 +0800, Lu Guanqun wrote: [...] > Sink #0 > State: IDLE > Name: alsa_output.pci-0000_00_1b.0.hdmi-stereo > Description: Internal Audio Digital Stereo (HDMI) [...] > Formats: > pcm Looks like you didn't set the supports formats on the receiver (instructions are on the Passthrough page on the wiki). You can also do a pactl set-sink-formats 0 "pcm; dts-iec61937" for now. -- Arun