Am Dienstag, den 07.06.2011, 17:38 +0300 schrieb Lasse Kärkkäinen: > The NVidia HDMI ALSA device, present on recent hardware when the nvidia > driver is used, is not properly used by Pulseaudio. You need to use > hw:NVidia,7 (I think Pulseaudio uses hw:NVidia,3 by default), the number > of channels needs to be configurable (I use six) and Alsamixer control > "SPDIF 1" needs to be unmuted. It may also be helpful to lock the sample > rate to avoid switching delays. > > load-module module-alsa-sink device=hw:NVidia,7 channels=6 rate=48000 # > This is what I use > > All this can be done by manually specifying alsa-sink and unmuteing the > channel but it really should be automatic as more and more users are > getting these systems and thus suffer of the problem. > > The nouveau driver also displays all the same controls but no sound is > heard (for now at least), so do not bother trying to use that.
I do not know if it is helpful or on topic, but Stephen Warren wrote on the list alsa-devel that he wrote up a document describing the current state regarding ALSA and Nvidia [1]. Thanks, Paul [1] ftp://download.nvidia.com/XFree86/gpu-hdmi-audio-document/gpu-hdmi-audio.html
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