'Twas brillig, and Xavier Bestel at 23/01/11 20:24 did gyre and gimble: > Le dimanche 23 janvier 2011 ? 10:16 +0000, Colin Guthrie a ?crit : >> IIUC, HDMI is a digital output and as such only accepts either stereo >> PCM or pre-encoded streams that you pass through directly without any >> mixing or interference. > > Well, IIUC you're speaking about optical outputs which have the bandwith > only for stereo PCM or dolby/dts encoded 6/7/8 channels, whereas HDMI > has the bandwidth & protocol for 8 channels. See > http://en.wikipedia.org/wiki/High-Definition_Multimedia_Interface In that case PA should just piggy back on the ALSA devices "surround51:1" etc. (where 1 is the card number of the HDMI). There are some reasons why it may not work (there are a few threads about it on alsa-devel from a while back now I look), but if you can make it work with speaker-test -Dsurround51:1 -c6 -twav then all should be well. Failing all that, just try this: 1. Set the card profile to "Off" for the HDMI card in pavucontrol or gnome-volume-control. 2. Run: pacmd load-module module-alsa-sink sink_name=HDMI device=hw:1,3 channels=6 That could work. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]
