ftp://download.nvidia.com/XFree86/gpu-hdmi-audio-document/gpu-hdmi-
audio.html#_examples
This configuration is used in MCP77, MCP78, MCP79, MCP7A, and ION.
In the case where multiple HDMI display connectors are present, the
audio stream is broadcast to all HDMI connectors at once. A single ALSA
device is exposed.
ELD and PD information is not available on these chipsets.
Node 0x04 [Audio Output] wcaps 0x211: Stereo Digital
Control: name="IEC958 Playback Con Mask", index=1, device=0
Control: name="IEC958 Playback Pro Mask", index=1, device=0
Control: name="IEC958 Playback Default", index=1, device=0
Control: name="IEC958 Playback Switch", index=1, device=0
Device: name="HDMI 0", type="HDMI", device=3
Converter: stream=8, channel=0
Digital: Enabled
Digital category: 0x0
PCM:
rates [0xc0]: 48000 88200
bits [0xf]: 8 16 20 24
formats [0x1]: PCM
Node 0x05 [Pin Complex] wcaps 0x400381: Stereo Digital
Pincap 0x00000014: OUT Detect
Pin Default 0x18560110: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 1
0x04
this mean that the availablity of hdmi is alway unknown
hdmi-output-0: HDMI / DisplayPort (priority 5900, available:
unknown)
properties:
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1069338
Title:
hdmi out keeps muting after a while. alsamixer shows spdif on, but
turning it off then back on fixes sound. Then it mutes again after a
minute or so...
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1069338/+subscriptions
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