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)
Say Y to enable HD-Audio Keep Alive (KAE) aka Silent Stream
for HDMI on hardware that supports the feature.
When enabled, the HDMI/DisplayPort codec will continue to provide
a continuous clock and a valid but silent data stream to
any connected external receiver. This allows to avoid gaps
at start of playback. Many receivers require multiple seconds
to start playing audio after the clock has been stopped.
This feature can impact power consumption as resources
are kept reserved both at transmitter and receiver.
for HDMI on hardware that supports the feature.
When enabled, the HDMI/DisplayPort codec will continue to provide
a continuous clock and a valid but silent data stream to
any connected external receiver. This allows to avoid gaps
at start of playback. Many receivers require multiple seconds
to start playing audio after the clock has been stopped.
This feature can impact power consumption as resources
are kept reserved both at transmitter and receiver.