danteoh
Member
So it turns out my issue is actually being caused by my Apple TV - it’s seemingly emitting a CEC off command when it’s already in standby mode. Thanks @J.Green for the tip!
We disconnected the Apple TV, blackout went away.
Reconnected Apple TV, blackouts came back.
Turned off CEC on the Apple TV, blackouts went away.
We disconnected the Apple TV, blackout went away.
Reconnected Apple TV, blackouts came back.
Turned off CEC on the Apple TV, blackouts went away.