For digital audio, if an HDMI device supports audio, it is required to
support the baseline format: stereo (uncompressed) PCM. Other formats
are optional, with HDMI allowing up to 8 channels of uncompressed audio
at sample sizes of 16-bit, 20-bit and 24-bit, with sample rates of 32
kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz and 192 kHz
if your other computer only support stereo, they don't need any speaker
allocation
Node 0x07 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
Control: name="HDMI/DP,pcm=8 Jack", index=0, device=0
Control: name="IEC958 Playback Con Mask", index=2, device=0
Control: name="IEC958 Playback Pro Mask", index=2, device=0
Control: name="IEC958 Playback Default", index=2, device=0
Control: name="IEC958 Playback Switch", index=2, device=0
Control: name="ELD", index=0, device=8
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0b000094: OUT Detect HBR HDMI DP
Pin Default 0x18560010: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x00:
Unsolicited: tag=03, enabled=1
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Connection: 0
In-driver Connection: 3
0x02 0x03 0x04
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https://bugs.launchpad.net/bugs/1264665
Title:
[W65_67SZ, Intel Haswell HDMI, Digital Out, HDMI] Playback problem,
pavucontrol shows hdmi signal but no sound on tv
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