Comment 35 for bug 961286

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Raymond (superquad-vortex2) wrote :

ftp://download.nvidia.com/XFree86/gpu-hdmi-audio-document/gpu-hdmi-audio.html

6.1.2. Chipset with 8-channel support, single stream

ELD and PD information is not available on these chipsets.

In these chipsets, the multiple 2-channel converters are aggregated by the ALSA driver and exposed as a single 8-channel device. Some chipsets support 2, or 8 channels (MCP77). Other chipsets support 2, 6, or 8 channels (MCP79).