Enable Silent Stream always for HDMI
configname: CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM
Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>HD-Audio
└─>Enable Silent Stream always for HDMI
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
Intel hardware has a feature called 'silent stream', that
keeps external HDMI receiver's analog circuitry powered on
avoiding 2-3 sec silence during playback start. This mechanism
relies on setting channel_id as 0xf, sending info packet and
preventing codec D3 entry (increasing platform static power
consumption when HDMI receiver is plugged-in). 2-3 sec silence
at the playback start is expected whenever there is format change.
(default is 2 channel format).
Say Y to enable Silent Stream feature.
keeps external HDMI receiver's analog circuitry powered on
avoiding 2-3 sec silence during playback start. This mechanism
relies on setting channel_id as 0xf, sending info packet and
preventing codec D3 entry (increasing platform static power
consumption when HDMI receiver is plugged-in). 2-3 sec silence
at the playback start is expected whenever there is format change.
(default is 2 channel format).
Say Y to enable Silent Stream feature.