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 Desktop
Packages, which is subscribed to alsa-driver in 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...
Status in “alsa-driver” package in Ubuntu:
New
Bug description:
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...
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bekir 1678 F.... pulseaudio
bekir 2295 F.... alsamixer
/dev/snd/pcmC0D3p: bekir 1678 F...m pulseaudio
/dev/snd/timer: bekir 1678 f.... pulseaudio
CurrentDmesg:
[ 4.884461] input: HDA NVidia Rear Mic as
/devices/pci0000:00/0000:00:08.0/sound/card0/input5
[ 4.884667] input: HDA NVidia Line Out as
/devices/pci0000:00/0000:00:08.0/sound/card0/input6
[ 5.083557] init: plymouth-stop pre-start process (1293) terminated with
status 1
Date: Sun Oct 21 05:47:21 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA NVidia
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Sound works for a while, then breaks
Title: [To Be Filled By O.E.M., Nvidia MCP79/7A HDMI, Digital Out, HDMI]
fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: ION
dmi.board.vendor: ZOTAC
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080015:bd10/18/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnZOTAC:rnION:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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